Question

The area of a circle is 154 cm2 find its radius and perim

Answer 1

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here is ur answer ➖➖➖➖➖➖➖➖➖➖➖➖➖⬇

Area=154cm square
area=pi r square
154cm=22/7×r ×r
154cm×7/22=r×r
49cm=r square
r=7cm

circumference =2 pi r
2×22/7×7cm
2×22cm
44cm

hope it helps you....

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Answer 2

area of circle=πr2
154=22/7
154*7/22=r2
√49=7
r=7 cm

so perimeter is 44 cm

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