SOLUTION: A triangle has sides of 11 ft, 12 ft, and 15 ft. What is of the angle opposite the shortest side?

Question 927223: A triangle has sides of 11 ft, 12 ft, and 15 ft. What is of the angle opposite the shortest side?
Found 2 solutions by Alan3354, Fombitz:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A triangle has sides of 11 ft, 12 ft, and 15 ft. What is of the angle opposite the shortest side?
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Use the Cosine Law.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use the law of cosines,

Time for a calculator.
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