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Goshia [24]
3 years ago
14

If m ZA = 87º and mZB = 32°, find m21.

Mathematics
1 answer:
BaLLatris [955]3 years ago
6 0

Answer:

Step-by-step explanation:

∠1 = ∠A + ∠B          

                 { exterior angle equals the sum of opposite interior angles }

    = 87 + 32

     = 119

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