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43 votes
What is b? how would i find the measure of b?

What is b? how would i find the measure of b?-example-1
User Ylovesy
by
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1 Answer

12 votes
12 votes

In the given right triangle ABC

we have that


cos(A)=(AC)/(AB)\text{ ----> by CAH}

substitute given values


\begin{gathered} cos40^o=(b)/(280) \\ solve\text{ for b} \\ b=280*cos40^o \\ b=214.49\text{ in} \end{gathered}

therefore

The answer is b=214 inches

User Jagough
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2.6k points