The area (in cm2) of the biggest circle that could be drawn in a square of side 18 cm is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 81π.
Diameter of the circle = 18 cm
Radius (r) = 18/2 = 9 cm
Area of the circle = πr2 = π × (9)2 = 81π cm2