Question

Line t is tangent to the circle. Find the mZ3.

Answer 1

Answer:

∠ 3 = 110°

Step-by-step explanation:

The measure of the tangent- chord angle is half the the measure of its intercepted arc.

intercepted arc = 360° - 140° = 220°

∠ 3 = 0.5 × 220° = 110°