If the area of a circle is 15400 cm2, find its radius and circumference
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Answered by
5
Answer:
area of a circle= πr²
so , let's take radius as X
22/7×x×x= 15400 cm²
x² =15400× 7/22
x²=4900
X=√4900
X= 70
so, radius of the circle= 70 cm
circumference of a circle= 2πr
2×22/7×70 =440 cm
Answered by
0
Answer:
Radius = 70 cm
Circumference = 440 cm
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