Question

when thr circumfrance and area of a circle are numericaly equal then find the lenght of radius of circle

Answer 1

2πr=πr^2
2r=r^2
r^2÷r=2
r^2-1=2
r=2 units

Answer 2

Area of circle = 22/7 × r^2
Circumference of circle = 2×22/7×r

Given,
Circumference = Area
2×22/7×r = 22/7×r^2
2×r = r^2 [pie cancels with pie]
2 = r^2/r
r = 2 unit

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