Question

If the area of a circle is equal to its circumference, then its radius is ​

Answer 1

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Step-by-step explanation: The area of a circle is given by the formula A = π r2, where A is the area and r is the radius. The circumference of a circle is C = 2 π r. If we "solve for r" in the second equation, we have r = C / (2 π ).

Answer 2

Answer:

$2\pi \: r \: = \: \pi \: r {}^{2}$

2r = r*r

r = 2