Answer:(a) 90° (b) 270° (c) 135° (d) 135° 11. (a) 80° (b) 120° (c) 160° (d) 80° (e) 120° (f) 160° (g) 10° (h) 50° (i) 30° 13. ... (a) The measure of an arc equals the measure of its corresponding central angle. ... Proof: Using the chords AB, BC, CD, and AD in QO as sides of inscribed ... (a) 96° (b) 60°_J3. ... mZl = 36°;mZ2 = 108
Step-by-step explanation:
