What is the perimeter of a square inscribed in a circle of radius 5 cm?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 20√2 cm
The radius of the circle = Half of the diagonal of the square which is inscribed in the circle
side/√2 = 5
side of the square = 5√2 cm
Hence the perimeter of the square = 4 × 5√2 = 20√2 cm