SOLUTION: I have an isosceles triangle with a 45deg angle between. What is the formula for finding the length of the third side?

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Question 15322: I have an isosceles triangle with a 45deg angle between. What is the formula for finding the length of the third side?
Answer by tubby482(2) About Me  (Show Source):
You can put this solution on YOUR website!
Well this is a 45 45 90 triangle so the one 45 side is X radical 2 and one 45 side iss x and the hypostens is 2x