Class 8: Maths Chapter 23 solutions. Complete Class 8 Maths Chapter 23 Notes.
Contents
RS Aggarwal Solutions for Class 8 Maths Chapter 23–Pie Charts
RS Aggarwal 8th Maths Chapter 23, Class 8 Maths Chapter 23 solutions
Ex 23A
Question 1.
Solution:
Total expenditure = Rs. 4000 + 5400 + 2800 + 1800 + 400 = Rs. 14400
Construction of pie chart :
1. Draw a circle of any convenient radius.
2. Draw a horizontal radius.
3. Staring from this radius, draw sectors of central angle 100°, 135°, 70°, 45° and 10° respectively.
4. Shade these sectors with different colors or designs as shown in the figure.
This is the required pie chart.
Question 2.
Solution:
Total number of creatures 900
(i) Draw a circle with a suitable radius.
(ii) Draw a horizontal radius.
(iii) Starting from this radius, draw sectors whose central angles are 60°, 160°, 70°, 50° and 20° respectively.
(iv) Now shade each sector with different colours or designs as shown in the figure.
Question 3.
Solution:
Total number of students = 350 + 245 + 210 + 175 + 280 = 1260
(i) Draw a circle with a suitable radius.
(ii) Draw a horizontal radius.
(iii) Starting from this radius draw sectors whose central angles are 100°, 70°, 60°, 50° and 80° respectively.
(iv) Now shade each sector with different colours or designs as shown in the figure.
Question 4.
Solution:
(i) Draw a circle with a suitable radius.
(ii) Draw a horizontal radius.
(iii) Starting from this radius, draw sectors whose actual angles are 105°, 60°, 30°, 120° and 45° respectively.
(iv) Now shade each sector with different colours or design as shown in the figure.
Question 5.
Solution:
Here total number of workers = 1080
Now (i) Draw a circle with a suitable radius
(ii) Draw a horizontal radius
(iii) Starting from this radius, draw sectors whose central angle are 150°, 90°, 85°, 35° respectively.
(iv) Now shade the sectors with different colours or designs as shown in the figure.
Question 6.
Solution:
Total marks obtained by Sudhir
= 105 + 75 + 150 + 120 + 90 = 540
(i) Draw a circle with a suitable radius
(ii) Draw a horizontal radius
(iii) Starting from this radius, draw sectors whose central angles are 70°, 50°, 100°, 80° and 60° respectively
(iv) Now shade these sectors with different colours or designs as shown in the figure.
Question 7.
Solution:
Total number of fruits = 26 + 30 + 21 + 5 + 8 = 90
(i) Draw a circle with a suitable radius.
(ii) Draw a horizontal radius.
(iii) Starting from this radius, draw sectors of central angles 104°, 120°, 84°, 20° and 32° respectively.
(iv) Shade these sectors with different colours or designs as shown in the figure.
Question 8.
Solution:
Total number of million of tonnes of food grains = 57 + 76 + 38 + 19 = 190 million of tonnes
(i) Draw a circle with suitable radius.
(ii) Draw a horizontal radius.
(iii) Starting with this radius, draw sectors of central angles 108°, 144°, 72° and 366 respectively.
(iv) Shade these sectors with different colours or designs as shown in the figure.
Question 9.
Solution:
Total percentage = 25 + 45 + 20 + 10 = 100%
(i) Draw a circle with a suitable radius.
(ii) Draw a horizontal radius.
(iii) Starting from this radius, draw sectors of central angles 90°, 162°, 72° and 36° respectively.
(iv) Shade these sectors with different colours or designs as shown in the figure.
Question 10.
Solution:
Total percentage = 20 + 40 + 25 + 15 = 100%
(i) Draw a circle with a suitable radius.
(ii) Draw a horizontal radius.
(iii) Starting from this radius, draw sectors of central angles 72°, 144°, 90° and 54° respectively.
(iv) Now shade these sectors with different colours or designs as shown in the figure.
Ex 23B
Question 1.
Solution:
Answer = (b)
Central angles = 2502400 x 360°
= 752
= 3712°
Question 2.
Solution:
Answer (c)
Central angle = 35100 x 360°
= 126°
Question 3.
Solution:
Answer = (a)
Total number of strength = 1650
Arts stream’s central angle = 48°
No. of students of Arts stream
= 48360 x 1650
= 220
Question 4.
Solution:
Answer = (c)
Central angle of students reading novels = 81°
81360 x 100
= 452
= 2212%
RS Aggarwal Solutions for Class 8 Maths Chapter 23: Download PDF
RS Aggarwal Solutions for Class 8 Maths Chapter 23–Pie Charts
Download PDF: RS Aggarwal Solutions for Class 8 Maths Chapter 23–Pie Charts PDF
Chapterwise RS Aggarwal Solutions for Class 8 Maths :
- Chapter 1–Rational Numbers
- Chapter 2–Exponents
- Chapter 3–Squares and Square Roots
- Chapter 4–Cubes and Cube Roots
- Chapter 5–Playing with Numbers
- Chapter 6–Operations on Algebraic Expressions
- Chapter 7–Factorisation
- Chapter 8–Linear Equations
- Chapter 9–Percentage
- Chapter 10–Profit and Loss
- Chapter 11–Compound Interest
- Chapter 12–Direct and Inverse Proportion
- Chapter 13–Time and Work
- Chapter 14–Polygons
- Chapter 15–Quadrilaterals
- Chapter 16–Parallelograms
- Chapter 17–Construction of Quadrilaterals
- Chapter 18–Area of a Trapezium and a Polygon
- Chapter 19–Three-Dimensional Figures
- Chapter 20–Volume and Surface Area of Solids
- Chapter 21–Data Handling
- Chapter 22–Constructing and Interpreting Bar Graphs
- Chapter 23–Pie Charts
- Chapter 24–Probability
- Chapter 25–Graphs
About RS Aggarwal Class 8 Book
Investing in an R.S. Aggarwal book will never be of waste since you can use the book to prepare for various competitive exams as well. RS Aggarwal is one of the most prominent books with an endless number of problems. R.S. Aggarwal’s book very neatly explains every derivation, formula, and question in a very consolidated manner. It has tonnes of examples, practice questions, and solutions even for the NCERT questions.
He was born on January 2, 1946 in a village of Delhi. He graduated from Kirori Mal College, University of Delhi. After completing his M.Sc. in Mathematics in 1969, he joined N.A.S. College, Meerut, as a lecturer. In 1976, he was awarded a fellowship for 3 years and joined the University of Delhi for his Ph.D. Thereafter, he was promoted as a reader in N.A.S. College, Meerut. In 1999, he joined M.M.H. College, Ghaziabad, as a reader and took voluntary retirement in 2003. He has authored more than 75 titles ranging from Nursery to M. Sc. He has also written books for competitive examinations right from the clerical grade to the I.A.S. level.
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