What is the hypotenuse if the other two sides are 6 and 8?

You need to use the pythagorean theorem to answer this question.

a^2+b^2=c^2

In this case, you know the length of 2 legs. (a and b)...

you are trying to solve for c ( the hypotenuse)...

so.. 6^2+8^2=c^2...

solve for c...

36+64=100... take the square root of 100, and c=10!