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Given
- Radius of small circle = 6 cm
- Radius of bigger circle = 20 cm
To Find
- Area of the ring
Solution
- To Find the area of ring first we need to find the area of small and big Circle
Area of small circle = πr²
Area of small circle = 22/7 × 6²
Area of small circle = 22/7 ×36
Area of small circle ≈ 113.1428 cm²
Area of big circle = πr²
Area of big circle = 22/7 × 20²
Area of big circle = 22/7 ×400
Area of big circle ≈ 1257.1428 cm²
Now,
Area Of Ring= Area Of Big circle - Area of Small Circle
Area Of Ring= 1257.1428 - 113.1248
- Area of Ring = 1144 cm²
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