Question

# If circumference and area of a circle are numerically equal, then find its diameter. 4 2π 2 8

Solution

## The correct option is A 4 Given: Area of the circle = Circumference of the circle ⇒ πr2=2πr ,where r is the radius of the circle. ⇒ r2=2r ⇒ r=2 ⇒ 2r=4 ∴ The diameter of the given circle is 4 units long.

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