13
Question:
In a triangle, two of the side lengths are 7 and 8, and the angle between them is $120^\circ.$  Find the length of the third side.
Answer:
Let's think step by step.

user
13
In a triangle, two of the side lengths are 7 and 8, and the angle between them is $120^\circ.$  Find the length of the third side.
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