Introduction
Chapter 25 RD Sharma Class 8 Maths Solutions focuses on Pie Charts, another important way to represent data pictorially. A pie chart divides a circle into sectors that show the relative size of each category. This chapter teaches students how to interpret and draw pie charts based on given data.
Understanding Pie Charts
Each pie chart is a circular graph where:
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The whole circle represents 100% of the data.
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Each sector represents a category’s share in that total.
The size of each sector is calculated using:
[
\text{Sector angle} = \frac{\text{Value of the category}}{\text{Total value}} \times 360°
]
Steps to Draw a Pie Chart
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Find the total value of all categories.
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Calculate each category’s angle using the formula above.
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Draw a circle and mark the angles using a protractor.
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Label each sector clearly.
Importance of Pie Charts
Pie charts provide a clear visual understanding of proportions. They are widely used in surveys, economics, business reports, and research to show percentage comparisons.
How RD Sharma Solutions Help
RD Sharma solutions explain every step with practical examples. Students practice multiple problems that improve calculation accuracy and graphical skills.
Benefits of Practicing Pie Chart Problems
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Enhances visualization and comparison ability
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Strengthens concept of percentage and proportion
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Improves presentation and interpretation skills
Conclusion
Chapter 25 – Data Handling III (Pictorial Representation of Data as Pie Charts) makes learning fun and visual. Regular practice of RD Sharma solutions helps students become confident in interpreting and constructing pie charts accurately.