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Rina8888 [55]
3 years ago
7

The diagram below shows the dimensions of a triangular park built in a new housing development. Two side lengths and one angle m

easure are given.
What is the measure of angle X? Round the answer to the nearest tenth.

Mathematics
1 answer:
evablogger [386]3 years ago
7 0
ANSWER

x = 50.5 \degree

EXPLANATION

We use the sine rule for solving triangles.

This is given by the formula,


\frac{ \sin(A) }{a}  =  \frac{ \sin(B) }{b}  = \frac{ \sin(C) }{c}


From the triangle,

\frac{ \sin(x) }{60}  =  \frac{ \sin(40) }{50}

We multiply both sides of the equation by 60 to get,

sin(x)  =  \frac{ 60\sin(40 \degree) }{50}


sin(x)  = 0.7713



We solve for x to obtain,

x = arcsin(0.7713)


x = 50.475

To the nearest tenth, we round to one decimal place to get,

x = 50.5 \degree

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