SOLUTION: If a right isosceles triangle has two legs equaling 8cm., what is the hypotenuse length? what formula do I use to find it?

Algebra ->  Triangles -> SOLUTION: If a right isosceles triangle has two legs equaling 8cm., what is the hypotenuse length? what formula do I use to find it?      Log On


   

Question 283569: If a right isosceles triangle has two legs equaling 8cm., what is the hypotenuse length? what formula do I use to find it?
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Use the Pythagorean theorem. Two sides are 8 and 8 and the hyptoneues can be found as
a%5E2+%2B+b%5E2+=+c%5E2
8%5E2+%2B+8%5E2+=+c%5E2
64%2B64+=+c%5E2
2%2A64+=+c%5E2
sqrt%282%2A64%29+=+c
sqrt%282%29%2A8+=+c
11.3+=+c