If the circumference of a circular sheet is 132cm. Find its radius and area.
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Answer:
circumference =2×22/7×r
132 = 2×22/7×r
132×7/2×22
3×7=r
r=21cm
then,
area = 22/7×21×21
area = 22×3×21
area = 1386 cm²
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