CBSE Class 10 Mathematics
Question 18 of 35
Areas Related to Circles — Question Ex 12.2 Q13
Back to all questions Ex 12.2 Q13
Question A round table cover has six equal designs as shown in the figure. If the radius of the cover is 28 cm, find the cost of making the designs at the rate of ₹0.35 per cm². (Use √3= 1.7)
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Mathematics | Areas Related to CirclesWeb Content
CBSE Class 10 Areas Related to Circles — Complete Guide
This chapter carries 4-5 marks and involves calculation of sector areas, segment areas, and combination of plane figures.
Quick Revision: Key Formulae
- Sector area: (θ/360) × πr²
- Arc length: (θ/360) × 2πr
- Segment area: Sector area − Triangle area
- Combination figures: Decompose into basic shapes, add/subtract
Most Important Questions
- Find area of sector and corresponding segment
- Shaded region problems (circle in square, etc.)
- Flower petal and design problems
- Combined figure area calculations
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