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If radius of a circle is 3 cm, what is the area of the circle in sq. cm ?
Answer & Solution
Correct Answer:
Option
B
Given: Radius of a circle = 3 cm
Area of circle :
$$\eqalign{ & = \pi {r^2} \cr & = \pi \times {3^2} \cr & = 9\pi {\text{ sq}}{\text{.}}\,{\text{cm}} \cr} $$
Area of circle :
$$\eqalign{ & = \pi {r^2} \cr & = \pi \times {3^2} \cr & = 9\pi {\text{ sq}}{\text{.}}\,{\text{cm}} \cr} $$
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