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ololo11 [35]
3 years ago
10

Whats the length of the short side?

Mathematics
1 answer:
anzhelika [568]3 years ago
3 0

Call the short side x.   We have

tan 72° = opposite/adjacent =  (12.8 cm) / x

x = 12.8 / tan 72° = 12.8/(3.01) = 4.158...

Answer: 4.2 cm


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