Problem 43 of 7
Find missing side from area formula using area 25, side c=10, included angle B=150 degrees.
Hints
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rearrange A=1/2ab sin(C).
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Rearrange A=1/2ab sin(C) for known area, side, and angle.
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Solution
Walkthrough
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1. Write A=1/2ab sin(C).
2. Substitute known area, side, and angle.
3. Solve algebraically for the missing side.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Dividing by angle measure instead of sine of the angle.