From a circular sheet of radius 20cm, a circle of radius 10 cm is removed. Find the area of the remaining sheet. (Take π=3.14)
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Answer:
The area of the remaining sheet will be 94.2 cm²
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Here the explanation
Step-by-step explanation:
Radius of circular sheet (r₁) = 20 cm
Radius of removed circle (r₂) = 10 cm
Area of remaining sheet = Area of circular sheet – Area of removed circle = πr₁2 - πr₂2
= π (r₁2 - r₂2)
= 3.14 (20² - 10²) cm²
= 3.14 (400 - 100) cm2²
= 3.14 × 300 cm²
= 942 cm²
Thus the area of the remaining sheet is 942 cm2.
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