From a circular sheet of radius 4cm a circle of radius 3cm is removed.find the area of remaining sheet
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Answered by
2
Step-by-step explanation:
R = 4 cm
Area of circle = πR²
A1 = 16πcm²
Now a circle of 3cm is removed , area of that circle will be
A2 = π×9 = 9πcm²
Now , area of remaining circle = A1-A2
=( 16-9)π cm²
= 7 π cm²
Putting value of π = 22/7
= 7×22/7 = 22 cm²
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Answered by
2
Answer:
22 cm²
Step-by-step explanation:
Area of remaining sheet = area of circular sheet - area of removed sheet
Area of circular sheet = πr²
= 22/7×4² = 22/7×16 = 352/7cm²
Area of removed sheet = πr²
= 22/7×3²= 22/7×9 = 198/7 cm²
Area of remaining sheet = 352/7 - 198/7
= (352-198)/7
=154/7
= 22cm²
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