Question

If the area of a circle is numerically equal to twice its circumference, then the diameter of the circle is ____________.

Options

• 4 units

• n units

• 8 units

• 2 units

Answer 1

If the area of a circle is numerically equal to twice its circumference, then the diameter of the circle is 8 units.

Explanation:

`pi  "r"^2 = 2 pi "r" xx 2`

`=> "r" = 4`

`=> 2 "r" = 8` units