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Whats the length of the short side?
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Whats the length of the short side?

Whats the length of the short side?-example-1
User HexaJer
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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


User Jake Luby
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