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Calculate the length of BC. Round answer to the nearest centimeter.

 Jul 5, 2020
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tan(40o)  =  CD / AD     --->     tan(40o)  =  CD / 10     --->     CD  =  10 · tan(40o)

 

tan(30o)  =  BD / AD     --->     tan(30o)  =  BD / 10     --->     BD  =  10 · tan(30o)

 

Use a calculator to find the lengths of CD and BD and then add those two lengths together.

 Jul 5, 2020

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