A circle is inscribed within a square with a side length of 18 cm. Find the area of the part of the square not covered by the circle.
Show answer & explanation
Correct answer: B
Explanation
Given:
Side of square = 18 cm
By formula:
Area of square = a²
Area of square = 18² = 324
Radius of circle = 18/2 = 9
Area of circle = πr²
Area of circle = π × 9² = 81π
Part of square not covered by circle = 324 − 81π = 324 − 254.47 = 69.53 cm²