If the circumference and the area of a circle are numerically equal, then the diameter is equal to · ABC26GN4545

Subject: General Aptitude · Chapter: Area

If the circumference and the area of a circle are numerically equal, then the diameter is equal to

(a)$\frac{\pi}{2}$

(b)$2 \pi$

(c)2

(d)4

Answer

Answer (as printed): D

Explanation

$2 \pi R=\pi R^{2} \Leftrightarrow R=2 \Leftrightarrow 2 R=4$. Hence, diameter $=4$.

Explanation as extracted from the printed page; notation may be imperfect.

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