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What does BD equal to?​
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What does BD equal to?​

What does BD equal to?​-example-1
User Nwales
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Answer:

Explanation:


tan\theta =16/20\\ \\ \theta=arctan(4/5)\\ \\ tan(90-\theta )=BD/20\\ \\ BD=20tan(90-\theta )\\ \\ BD=20tan(90-arctan(4/5))\\ \\ BD=20

User Alex Deckmyn
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