The area of a circle whose centre is (h, k) and radius a is.... | MATH - EQUATIONS OF CIRCLE, GEOMETRICAL PROBLEMS REGARDING CIRCLE | SolveeIt | Solveeit

Today, August 18

Question

The area of a circle whose centre is (h, k) and radius a is.

A

$\pi \left( h ^ { 2 } + k ^ { 2 } - a ^ { 2 } \right)$

B

$\pi a ^ { 2 } h k$

C

$\pi a ^ { 2 }$

D

None of these

Answer

$\pi a ^ { 2 }$

Explanation

Solution

Since area $= \pi r ^ { 2 }$ , where $r = a$ ⇒ Area $= \pi a ^ { 2 }$ .