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Can someone please help me answer this two part math problem, solve the first triangle then the second

Can someone please help me answer this two part math problem, solve the first triangle-example-1
User Nanitous
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1 Answer

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GIVEN

The triangle is shown in the question. The following parameters are given:


\begin{gathered} \theta=30\degree \\ opp=10 \\ adj=y \\ hyp=x \end{gathered}

SOLUTION

Recall the sine trig ratio:


\sin\theta=(opp)/(hyp)

Substitute known values into the ratio:


\begin{gathered} \sin30=(10)/(x) \\ \therefore \\ x=(10)/(\sin30) \\ x=20 \end{gathered}

To solve for y, recall the Pythagorean Theorem:


hyp^2=opp^2+adj^2

Substitute known values:


\begin{gathered} 20^2=10^2+y^2 \\ 400=100+y^2 \\ \therefore \\ y=√(400-100)=√(300) \\ y=10√(3) \end{gathered}

ANSWER


\begin{gathered} x=20 \\ y=10√(3) \end{gathered}

User Ricoter
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