Question

The legs of a right triangle are 4 units and 7 units whats the length of the hypotenuse

Answer 1

Use the Pythagorean Theorem (a2 + b2 = c2), where a and b are the leg lengths and c is the hypotenuse, therefore:
a2 + b2 = c2, a=4, b=7, c=?
4x4 + 7x7 = c2
16 + 49 = c2
c = √65
so c = 8.06