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Pavlova-9 [17]
1 year ago
11

Triangle ABC , m∠A=45° and c = 16, find b.

Mathematics
1 answer:
zmey [24]1 year ago
5 0

Using the cosine function:

\begin{gathered} \cos (\theta)=\frac{_{\text{ }}adjacent}{_{\text{ }}hypotenuse} \\ so\colon \\ \cos (45)=\frac{b}{16} \end{gathered}

Solve for b:

\begin{gathered} b=16\cdot\cos (45) \\ b=8\sqrt[]{2} \end{gathered}

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