From a point 13 cm away from the center of a circle, a tangent of length 12 cm is drawn. Find the radius of the circle?
Show answer & explanation
Correct answer: A
Explanation
Given:
Distance from the center = 13 cm
Tangent = 12 cm
According to the formula:
(OP)² = r² + (Tangent)²
13² = r² + 12²
169 = r² + 144
r² = 25
r = 5 cm