Question

Can someone help me with these problems S and T

Answer 1

S) 230°

T) 45°

Explanation:

S) m∠RST = 30°. An inscribed angle is half the central angle, so RT = 60°.

SR = 70°, so ST = SR + RT = 60° + 70° = 130°.

SPT = 360° − ST = 360° − 130° = 230°

T) m∠DCA = 60°. An inscribed angle is half the central angle, so AD = 120°.

DB = AD − BA = 120° − 75° = 45°