A circle k(O) with the radius r is given. Line AB is a Tangent to circle k(O) at point B. Find AB, if m∠AOB=60°, and r=12 cm.
Accepted Solution
A:
Answer:AB = 12√3Step-by-step explanation:OAB is a right triangle because the OB is perpendicular to AB. Since AOB is 60°, OAB is 30°, giving us a 30-60-90 triangle. Therefore AB = OB*√3=12√3