the area of a circle is 154cm square. find its perimeter
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Area of a circle = πr2
so 154 = 22/7 x r2
r2 = 154 x 7/22
r2 = 49
r = 7
than
Circumfrence = 2πr
= 2 x 22/7 x 7
= 44
Hence circumfrence of circle = 44 cm
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so 154 = 22/7 x r2
r2 = 154 x 7/22
r2 = 49
r = 7
than
Circumfrence = 2πr
= 2 x 22/7 x 7
= 44
Hence circumfrence of circle = 44 cm
mark as a brainliest answer
Shahabaftab56:
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