D. Calculate the measure of the angles containing the variables a and b and explain your reasoning 18 19. 17. A: BE 85 a t 1, 1110 a b ab 20. 21. 22. 20-25-1 115 115 a 2 a b - 15 ܨܐ ܟ 1, 23. 24. 4b 4a 14a 12b 4a - 110°C

Answer:
17,a=110°
b=65°
18,a=85°
b=95°
Step-by-step explanation:
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