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masya89 [10]
4 years ago
8

Find the measure of b. A. 80 B. 70 C. 40 D. 20

Mathematics
1 answer:
BlackZzzverrR [31]4 years ago
8 0

Answer:

40°

Step-by-step explanation:

e = 20°

d = 20°

c = 140°

b = 40°

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