Question

find the length of the hypotenuse of this right trianlge.

Answer 1

c^2 = 10^2 + 7^2 = 149 (Pythagoras theorem)
c = sqrt149

Answer 2

Since it's a right triangle you can simple use the Pythagorean Theorem:\[a^2+b^2=c^2\]\[7^2+10^2=c^2\]\[c=\sqrt{7^2+10^2}\]