SOLUTION: Two sides of an isosceles triangle measure 21 and 51. What is the length of the third side?

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Question 1029306: Two sides of an isosceles triangle measure 21 and 51. What is the length of the third side?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Think about this:

The third side is either 51 OR 21. The Triangle Inequality Theorem will control which of these will work.