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Solve for the unknown in the following diagram. Round all answers to two decimal places. cm

Solve for the unknown in the following diagram. Round all answers to two decimal places-example-1
User Umar Abbas
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1 Answer

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25 votes

The Law of Sines

It's a formula that relates side lengths to their opposite angle measure.

We are given a triangle ABC where one of its sides is AC=52.6 cm. Angles A and C are also known, A=44°, C=100°.

We can calculate the third angle by subtracting A+C from 180°:

B = 180° - 44° - 100° = 36°

Now we calculate the side length x by using the law of sines as follows:


(52.6)/(\sin 36)=(x)/(\sin 44\~)

Solving for x:


x=52.6\cdot(\sin 44)/(\sin 36)

Calculating:


x\text{ = 52.6}\cdot(0.6947)/(0.5878)=62.17\operatorname{cm}

Thus x = 62.17 cm

User Nathan Stocks
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