Is the law of cosines only applicable to acute triangles?
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How do you use the law of cosines to find the area of a triangle?
I need to use the law of sines and cosines to figure out angles and lengths.
What does the law of cosines reduce to when dealing with a right triangle?
A. The Pythagorean theorem
B. The formula for a triangle's area
C. The law of sines
D. The formula for a triangle's area