SOLUTION: is PQ=25, QR=20 and PR=23, which angle in the triangle is the largest?

SOLUTION: is PQ=25, QR=20 and PR=23, which angle in the triangle is the largest?

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Question 389063: is PQ=25, QR=20 and PR=23, which angle in the triangle is the largest?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
From the law of cosines,

degrees

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