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35 votes
35 votes
Find the measure of the missing angle round to the 1 decimal place

User Adamduren
by
2.8k points

1 Answer

20 votes
20 votes

To find the missing angle we can use the inentity for cos tha is:


\cos (\theta)=(adyacent)/(hypotenuse)

and in our triangle will be:


\cos (\theta)=(24)/(30)

and we cn solve for theta:


\begin{gathered} \theta=\cos ^(-1)(0.8) \\ \theta=36.9ยบ \end{gathered}

User Avi Tevet
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2.8k points