{"id":120661,"date":"2021-02-15T08:29:27","date_gmt":"2021-02-15T08:29:27","guid":{"rendered":"https:\/\/www.indcareer.com\/schools\/?p=120661"},"modified":"2023-09-15T12:16:38","modified_gmt":"2023-09-15T12:16:38","slug":"ncert-solutions-for-8th-class-maths-chapter-10-visualising-solid-shapes","status":"publish","type":"post","link":"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-10-visualising-solid-shapes\/","title":{"rendered":"NCERT Solutions for 8th Class Maths: Chapter 10-Visualising Solid Shapes"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"h-ncert-solutions-for-8th-class-maths-chapter-10-visualising-solid-shapes\"><strong>NCERT Solutions for 8th Class Maths: Chapter 10-Visualising Solid Shapes<\/strong><\/h2>\n\n\n\n<p>Page No: 157<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-exercise-10-1\">Exercise 10.1<\/h2>\n\n\n\n<p><strong>1. For each of the given solid, the two views are given. Match for each solid the corresponding top and front views. The first one is done for you.<\/strong><\/p>\n\n\n\n<p><br><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/1a2.png\"><\/p>\n\n\n\n<p><strong>Answer<\/strong><\/p>\n\n\n\n<p>(a) \u2192 (iii) \u2192 (iv)<br>(b) \u2192 (i) \u2192 (v)<br>(c) \u2192 (iv) \u2192 (ii)<br>(d) \u2192 (v) \u2192 (iii)<br>(e) \u2192 (ii) \u2192 (i)<\/p>\n\n\n\n<p><strong>2. For each of the given solid, the three views are given. Identify for each solid the corresponding top, front and side views.<\/strong><\/p>\n\n\n\n<p><br><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/13.png\"><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/14.png\" alt=\"\"\/><\/figure>\n\n\n\n<p>(a) (i) \u2192&nbsp;Front<br>(ii) \u2192&nbsp;Side<br>(iii) \u2192&nbsp;Top view<\/p>\n\n\n\n<p>(b) (i) \u2192&nbsp;Side<br>(ii) \u2192 Front<\/p>\n\n\n\n<p>(iii) \u2192&nbsp;Top view<\/p>\n\n\n\n<p>(c) (i) \u2192 Front<\/p>\n\n\n\n<p>(ii) \u2192&nbsp;Side<br>(iii) \u2192&nbsp;Top view<\/p>\n\n\n\n<p>(d) (i) \u2192 Front<\/p>\n\n\n\n<p>(ii) \u2192&nbsp;Side<br>(iii) \u2192 Top view<\/p>\n\n\n\n<p><strong>3. For each given solid, identify the top view, front view and side view.<\/strong><\/p>\n\n\n\n<p><br><a href=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/15.png\"><\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/1nmjmn5.png\" alt=\"\" class=\"wp-image-128519\"\/><\/figure>\n\n\n\n<p><strong>Answer<\/strong><\/p>\n\n\n\n<p>(ii) \u2192&nbsp;Front view<\/p>\n\n\n\n<p>(iii) \u2192&nbsp;Side view<\/p>\n\n\n\n<p>(b) (i) \u2192 Side view<\/p>\n\n\n\n<p>(ii) \u2192&nbsp;Front view<\/p>\n\n\n\n<p>(iii) \u2192 Top view<\/p>\n\n\n\n<p>(ii) \u2192&nbsp;Side view<\/p>\n\n\n\n<p>(iii) \u2192 Front view<\/p>\n\n\n\n<p>(d) (i) \u2192&nbsp;Side view<\/p>\n\n\n\n<p>(ii) \u2192&nbsp;Front view<\/p>\n\n\n\n<p>(iii) \u2192 Top view<\/p>\n\n\n\n<p>(ii) \u2192&nbsp;Top view<\/p>\n\n\n\n<p><strong>4. Draw the front view, side view and top view of the given objects:<\/strong><\/p>\n\n\n\n<p><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/16.png\"><\/p>\n\n\n\n<p><strong>Answer<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"609\" height=\"673\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/ncert-solutions-for-class-8-maths-chapter-10-visualising-solid-shapes-ex-10-1-q-8.png\" alt=\"\" class=\"wp-image-130076\" srcset=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/ncert-solutions-for-class-8-maths-chapter-10-visualising-solid-shapes-ex-10-1-q-8.png 609w, https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/ncert-solutions-for-class-8-maths-chapter-10-visualising-solid-shapes-ex-10-1-q-8-271x300.png 271w\" sizes=\"auto, (max-width: 609px) 100vw, 609px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"490\" height=\"711\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/ncert-solutions-for-class-8-maths-chapter-10-visualising-solid-shapes-ex-10-1-q-9.png\" alt=\"\" class=\"wp-image-130081\" srcset=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/ncert-solutions-for-class-8-maths-chapter-10-visualising-solid-shapes-ex-10-1-q-9.png 490w, https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/ncert-solutions-for-class-8-maths-chapter-10-visualising-solid-shapes-ex-10-1-q-9-207x300.png 207w\" sizes=\"auto, (max-width: 490px) 100vw, 490px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"566\" height=\"545\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/ncert-solutions-for-class-8-maths-chapter-10-visualising-solid-shapes-ex-10-1-q-10.png\" alt=\"\" class=\"wp-image-130084\" srcset=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/ncert-solutions-for-class-8-maths-chapter-10-visualising-solid-shapes-ex-10-1-q-10.png 566w, https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/ncert-solutions-for-class-8-maths-chapter-10-visualising-solid-shapes-ex-10-1-q-10-300x289.png 300w\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" \/><\/figure>\n\n\n\n<p>Page No. 163<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-exercise-10-2\">Exercise 10.2<\/h2>\n\n\n\n<p><strong>1. Look at the given map of a city.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/class8-maths-ncert-solutions-chapter10-1.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Answer the following.<\/strong><\/p>\n\n\n\n<p><strong>(a) Colour the map as follows: Blue-water, red-fire station, orange-library, yellow &#8211; schools, Green &#8211; park, Pink &#8211; College, Purple &#8211; Hospital, Brown &#8211; Cemetery.<\/strong><\/p>\n\n\n\n<p><strong>(b) Mark a green \u2018X\u2019 at the intersection of Road \u2018C\u2019 and Nehru Road, Green \u2018Y\u2019 at the intersection of Gandhi Road and Road A.<\/strong><\/p>\n\n\n\n<p><strong>(c) In red, draw a short street route from Library to the bus depot.<\/strong><\/p>\n\n\n\n<p><strong>(d) Which is further east, the city park or the market?<\/strong><\/p>\n\n\n\n<p><strong>(e) Which is further south, the primary school or the Sr. Secondary School?<\/strong><\/p>\n\n\n\n<p><strong>Answer<\/strong><\/p>\n\n\n\n<p>(a) The required map in colour is as follow:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/class8-maths-ncert-solutions-chapter10-2.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>(b) The marks can be put at the given point is indicated in the map in green X:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/class8-maths-ncert-solutions-chapter10-3.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>(c) The shortest route from library to the bus stop is indicated in the map in red colour:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/class8-maths-ncert-solutions-chapter10-4.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>(d) Between the market and the city park, the city park is further east.<\/p>\n\n\n\n<p>(e) Between the primary school or the Sr. Secondary School, the Sr. Secondary School is further south.<\/p>\n\n\n\n<p>Page No. 166<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-exercise-10-3\">Exercise 10.3<\/h2>\n\n\n\n<p><strong>1. Can a polygon have for its faces:<br>(i) 3 triangles<br>(ii) 4 triangles<br>(iii) a square and four triangles<\/strong><\/p>\n\n\n\n<p><br><strong>Answer<\/strong><\/p>\n\n\n\n<p>(i)&nbsp;No, a polyhedron cannot have 3 triangles for its faces.<br>(ii)&nbsp;Yes, a polyhedron can have four triangles which is known as pyramid on triangular base.<br>(iii)&nbsp;Yes, a polyhedron has its faces a square and four triangles which makes a pyramid on square base.<\/p>\n\n\n\n<p><strong>2. Is it possible to have a polyhedron with any given number of faces? (Hint: Think of a pyramid)<\/strong><\/p>\n\n\n\n<p><strong><br>Answer<\/strong><\/p>\n\n\n\n<p>It is possible, only if the number of faces are greater than or equal to 4.<\/p>\n\n\n\n<p>3. Which are prisms among the following:<br><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/20.png\"><br><strong>Answer<\/strong><\/p>\n\n\n\n<p>Figure (ii) unsharpened pencil and figure (iv) a box are prisms.<\/p>\n\n\n\n<p><strong>4. (i) How are prisms and cylinders alike?<br>(ii) How are pyramids and cones alike?<\/strong><\/p>\n\n\n\n<p><br><strong>Answer<\/strong><\/p>\n\n\n\n<p>(i)&nbsp;A prism becomes a cylinder as the number of sides of its base becomes larger and larger.<br>(ii)&nbsp;A pyramid becomes a cone as the number of sides of its base becomes larger and larger.<\/p>\n\n\n\n<p><strong>5. Is a square prism same as a cube? Explain.<\/strong><\/p>\n\n\n\n<p><strong><br>Answer<\/strong><\/p>\n\n\n\n<p>Yes, a square prism is same as a cube, it can also be called a cuboid. A&nbsp;<em>cube<\/em>&nbsp;and a&nbsp;<em>square prism<\/em>&nbsp;are both special types of a rectangular&nbsp;<em>prism<\/em>. A&nbsp;<em>square<\/em>&nbsp;is just a special type of rectangle!&nbsp;<em>Cubes<\/em>&nbsp;are rectangular prisms where all three dimensions (length, width and height) have the&nbsp;<em>same<\/em>&nbsp;measurement.<\/p>\n\n\n\n<p><br><strong>6. Verify Euler\u2019s formula for these solids.<\/strong><\/p>\n\n\n\n<p><br><img decoding=\"async\" src=\"https:\/\/www.indcareer.com\/schools\/wp-content\/uploads\/2021\/02\/21.png\"><\/p>\n\n\n\n<p><strong>Answer<\/strong><\/p>\n\n\n\n<p>(i)&nbsp;Here, figure (i) contains 7 faces, 10 vertices and 15 edges.<br>Using Eucler\u2019s formula, we see<br>&nbsp;F + V \u2013 E = 2<br>Putting F = 7, V = 10 and E = 15,<br>&nbsp;F + V \u2013 E = 2<br>\u21d2 7 + 10 \u2013 15 = 2<br>\u21d2 17 \u2013 15 = 2<br>\u21d2 2 = 2<br>\u21d2 L.H.S. = R.H.S.&nbsp;Hence Eucler\u2019s formula verified.<\/p>\n\n\n\n<p>(ii) Here, figure (ii) contains 9 faces, 9 vertices and 16 edges.<br>Using Eucler\u2019s formula, we see<br>F + V \u2013 E = 2<\/p>\n\n\n\n<p>&nbsp;F + V \u2013 E = 2<br>&nbsp;9 + 9 \u2013 16 = 2<br>\u21d2 18 \u2013 16 = 2<br>\u21d2 2 = 2<br>\u21d2 L.H.S. = R.H.S.<br>Hence Eucler\u2019s formula verified.<\/p>\n\n\n\n<p><strong>7. Using Euler\u2019s formula, find the unknown:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Faces<\/td><td>?<\/td><td>5<\/td><td>20<\/td><\/tr><tr><td>Vertices<\/td><td>6<\/td><td>?<\/td><td>12<\/td><\/tr><tr><td>Edges<\/td><td>12<\/td><td>9<\/td><td>?<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Answer<\/strong><br>In first column, F = ?, V = 6 and E = 12<br>Using Eucler\u2019s formula, we see<br>F + V \u2013 E = 2<br>&nbsp;F + V \u2013 E = 2<br>\u21d2 F + 6 \u2013 12 = 2<br>\u21d2 F \u2013 6 = 2<br>\u21d2 F = 2 + 6 = 8<br>Hence there are 8 faces.<br>In second column, F = 5, V = ? and E = 9<br>Using Eucler\u2019s formula, we see<br>F + V \u2013 E = 2<br>F + V \u2013 E = 2<br>\u21d2 5 + V \u2013 9 = 2<br>\u21d2 V \u2013 4 = 2<br>\u21d2 V = 2 + 4 = 6<br>Hence there are 6 vertices.<br>In third column, F = 20, V = 12 and E = ?<br>Using Eucler\u2019s formula, we see<br>F + V \u2013 E = 2<br>F + V \u2013 E = 2<br>\u21d2 20 + 12 \u2013 E = 2<br>\u21d2 32 \u2013 E = 2<br>\u21d2 E = 32 \u2013 2 = 30<br>Hence there are 30 edges.<br><br><strong>8. Can a polyhedron have 10 faces, 20 edges and 15 vertices?<br><\/strong><br><strong>Answer<\/strong><\/p>\n\n\n\n<p>If F = 10, V = 15 and E = 20.<br>Then, we know Using Eucler\u2019s formula,<br>F + V \u2013 E = 2<br>L.H.S. = F + V \u2013 E<br>= 10 + 15 \u2013 20<br>= 25 \u2013 20<br>= 5<br>R.H.S. = 2<br>\u2235 L.H.S.&nbsp;\u2260&nbsp;R.H.S.<br>Therefore, it does not follow Eucler\u2019s formula.<br>So polyhedron cannot have 10 faces, 20 edges and 15 vertices.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-chapterwise-ncert-solutions-for-8th-class-maths\">Chapterwise NCERT Solutions for 8th Class Maths<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-1-rational-numbers\/?_gl=1*1h2rcfz*_ga*YW1wLTJFME1oOGhtWEJEMllnWUlLR29aR2c.\">Chapter 1 \u2013 Rational Numbers<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-2-linear-equations-in-one-variable-part-ii\/\">Chapter 2 \u2013 Linear Equations in One Variable<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-3-understanding-quadrilaterals\/\">Chapter 3 \u2013 Understanding Quadrilaterals<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-4-practical-geometry\/\">Chapter 4 \u2013 Practical Geometry<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-5-data-handling\/\">Chapter 5 \u2013 Data Handling<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-6-squares-and-square-roots\/\">Chapter 6 \u2013 Squares and Square Roots<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-7-cubes-and-cube-roots\/\">Chapter 7 \u2013 Cubes and Cube Roots<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-8-comparing-quantities\/\">Chapter 8 \u2013 Comparing Quantities<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-9-algebraic-expressions-and-identities\/\">Chapter 9 \u2013 Algebraic Expressions and Identities<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-10-visualising-solid-shapes\/\">Chapter 10 \u2013 Visualizing Solid Shapes<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-11-mensuration\/\">Chapter 11 \u2013 Mensuration<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-12-exponents-and-powers\/\">Chapter 12 \u2013 Exponents and Powers<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-13-direct-and-inverse-proportions\/\">Chapter 13 \u2013 Direct and Inverse Proportions<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-14-factorisation\/\">Chapter 14 \u2013 Factorization<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-15-introduction-to-graphs\/\">Chapter 15 \u2013 Introduction to Graphs<\/a><br><a href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-8th-class-maths-chapter-16-playing-with-numbers\/\">Chapter 16 \u2013 Playing with Numbers<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-about\">About<\/h2>\n\n\n\n<p>The National Council of Educational Research and Training is an autonomous organization of the Government of India which was established in 1961 as a literary, scientific, and charitable Society under the Societies Registration Act. Its headquarters are located at Sri Aurbindo Marg in New Delhi. <a href=\"https:\/\/ncert.nic.in\/\" target=\"_blank\" rel=\"noreferrer noopener\">Visit the Official NCERT website<\/a> to learn more. <\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-primary-background-color has-background wp-element-button\" href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions\/\">NCERT Solutions<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-primary-background-color has-background wp-element-button\" href=\"https:\/\/www.indcareer.com\/schools\/ncert-class-viii\/\">NCERT Solutions for Class 8<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-primary-background-color has-background wp-element-button\" href=\"https:\/\/www.indcareer.com\/schools\/ncert-solutions-for-class-8-maths\/\">NCERT Solutions for Class 8 Maths<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for 8th Class Maths: Chapter 10-Visualising Solid Shapes Page No: 157 Exercise 10.1 1. For each of the given solid, the two views are given. Match for each solid the corresponding top and front views. The first one is done for you. Answer (a) \u2192 (iii) \u2192 (iv)(b) \u2192 (i) \u2192 (v)(c) \u2192 [&hellip;]<\/p>\n","protected":false},"author":302,"featured_media":627504,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"newspack_featured_image_position":"","newspack_post_subtitle":"","newspack_article_summary_title":"Overview:","newspack_article_summary":"","newspack_hide_updated_date":false,"newspack_show_updated_date":false,"footnotes":""},"categories":[1411,58],"tags":[1506],"boards":[1180],"class_list":["post-120661","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-book-solutions","category-class-8","tag-ncert-maths-class-8","boards-ncert","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>NCERT Solutions for 8th Class Maths: Chapter 10-Visualising Solid Shapes - IndCareer Schools<\/title>\n<meta name=\"description\" content=\"NCERT Solutions for 8th Class Maths: Chapter 10-Visualising Solid Shapes Page No: 157 Exercise 10.1 1. 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