SOLUTION: A triangle has sides of length 5,8,and 10. What is the measure of its largest angle?
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Question 478552: A triangle has sides of length 5,8,and 10. What is the measure of its largest angle?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A triangle has sides of length 5,8,and 10. What is the measure of its largest angle?
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It's opposite the longest side.
Use the Cosine Law:
cos(C) = (100 - 89)/-40 = -11/40
C = ~ 105.96 degs
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