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SSAT Upper Level
Quantitative (Math)

Triangle Side Length Calculation

Hard Geometry And Measurement Triangles

In triangle ABC, the side lengths are given as $a$, $b$, and $c$, with the respective angles opposite these sides denoted as $A$, $B$, and $C$. If angle A is $45^{ ext{°}}$, angle B is $60^{ ext{°}}$, and the length of side a is $10$ units, what is the length of side c, opposite angle C?

To solve this, you can employ the Law of Sines, which states:

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

First, find angle C, and then apply the law to find the length of side c.

Hint

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