a wire is in the shape of a square of side 22 CM. if the wire is bent into a circle, find its radius. also, find the area of a circle.
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5
side =22
perimeter of square=circumfrence of circle
4s=2pie r
4×22=2 pie r
88cm=2 pie r
88× 7 = r 7 upon 22 because reciprocal
2 22
22×7=r
154cm= r
area of the circle= pie r square
=22 × (154) square
7
=22 × 154 × 154
7
=22×22×154
=74536 cm square
Answered by
2
Answer:
Radius= 14 cm
therefore, area of circle = πr2 =22/7x14x14=616sqcm
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