Question

If circumference and area of a circle area equal numerically, find the radius of circle.​

Answer 1

Answer:

$circumference \: of \: circle = 2\pi \: r \\ \\ area \: of \: circle = \pi {r}^{2} \\ \\ given \: that \: \\ 2\pi \: r = \pi {r}^{2} \\ 2r = {r}^{2} (\pi \: will \: get \: cancelled) \\ 2 = r \\ \\ so \: the \: radius \: of \: circle \: = 2$

Answer 2

Answer:

circumferenceofcircle=2πr

areaofcircle=πr

2

giventhat

2πr=πr

2

2r=r

2

(πwillgetcancelled)

2=r

sotheradiusofcircle=2

Step-by-step explanation:

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