Question

if the area of a circle is 154m square, find its radius. also find the circumference of the circle.
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Answer 1

Answer:

Radius 7 m , Circumference 44 m

Step-by-step explanation:

Area of circle = πr²

154 = $\frac{22}{7}$ * r²

r² = 154* $\frac{7}{22}$

r² = 49

r = 7 m

Circumference = 2 πr = 2 * 22/7 * 7 = 44 m