Math, asked by armaanmalik285, 1 year ago

what will be the circumference of the circle if area of the circle is 154cm^2 , with process

Answers

Answered by ReetChauhan1112
1
given,
area=154cm²
πr²=154
r²=154×7/22
r²=7×7
r=√49
r=7cm

so,
circumference
=2πr
=2×(22/7)×7
=2×22
=44cm

hope it helped
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armaanmalik285: i think ur answer is a bit wrong
ReetChauhan1112: why
armaanmalik285: i have searched it on net and it is giving 44.99cm
armaanmalik285: its okk
ReetChauhan1112: the must have taken π as 3.14 and i took it as 22/7
armaanmalik285: it is same
ReetChauhan1112: thnx for marking as brainiest
armaanmalik285: ur welcome
Answered by snehitha2
1
Area of the circle = 154 cm²
πr²=154
22/7r²=154
r²=154×7/22
r²=14×7/2
r²=7×7
r=√49
r=7 cm

Circumference of circle = 2πr
=2×22/7×7
=44 cm

Hope it helps
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