Problem 113 of 7
Combine trig area with triangle laws for given angles 35 and 75 and non-included side 18 opposite angle 35.
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Hidden until you reveal it.
find missing measurements before area.
Hidden until you reveal it.
Find missing measurements before area in multi-step non-right triangle problems.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Check whether two sides and included angle are known.
2. If not, use Law of Sines or Cosines to find needed included angle or side.
3. Apply trig area formula and report square units.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Applying trig area with an angle that is not included between selected sides.