Problem 60 of 7
Use Law of Cosines to find missing side in a=12, b=5, C=50.
Hints
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
apply SAS formula.
Hidden until you reveal it.
Apply SAS formula for acute or obtuse included angles.
Enter your answer
No answer yet
Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
Walkthrough shown
Full solution stays hidden until you ask for it.
1. Identify the included angle between two known sides.
2. Substitute into Law of Cosines.
3. Take the positive square root for length.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using Law of Sines without an opposite pair in SAS data.