180°(7-2) Measure of each interior angles 3 72 10. A. 100 B. 110° C 1200 D. 1300 A. 1400 B. 1500 C. 160° D 1700 A. 108 3. 1090 C. 110° D. 111°

Answer:
8. C
9. B
10. A
Step-by-step explanation:
Use the formula given in the instruction.