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Can someone explain and steps on how to do this please

Can someone explain and steps on how to do this please
180k views
2 votes
Can someone explain and steps on how to do this please

Can someone explain and steps on how to do this please-example-1
User Gabriele Franco
by
7.3k points

1 Answer

4 votes

Answer:

66.4°

Explanation:


\cos \: m\angle B = (2)/(5) \\ \cos \: m\angle B = 0.4 \\ m\angle H = { \cos}^( - 1) (0.4) \\ m\angle B = 66.421821522 \\ \huge \red{ \boxed{m\angle H = 66.4 \degree}}

User Hsfzxjy
by
8.0k points
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