A circular disc of radius 10 cm is cut into 4 equal parts. What is the area of each part?
Show answer & explanation
Correct answer: C
Explanation
Radius (r) = 10 cm, Number of parts = 4
Area of the circle = πr²
Area of one part = (πr²) / 4
Area of the circle = π × 10² = 100π
Area of one part = 100π / 4 = 25π cm²