Question 743154: I KNOW THE THREE SIDES OF A TRIANGLE WHAT ARE THE ANGLES 87" 42" 42" Found 2 solutions by Alan3354, Edwin McCravy:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! I KNOW THE THREE SIDES OF A TRIANGLE WHAT ARE THE ANGLES 87" 42" 42"
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Use the Cosine Law to find the angles.
I don't know what you mean by 87 42 42
You can put this solution on YOUR website! There is no solution because the sum of the shorter two sides of any triangle is ALWAYS GREATER THAN the longest side. In this problem, the sum of what are supposed to be the two shorter sides is 42"+42"=84", which is less than what is supposed to be the longest side 87". So those three lengths cannot be the sides of a triangle.
