Question

If a right triangle has a hypotenuse equal to 17 and a leg equal to 15, find the third side.

Answer 1

Use the pythagorean theorem a.k.a${a}^{2} + {b}^{2} = {c}^{2}$
c is the hypotenuse while a & b are the legs
${15}^{2} + {b}^{2} = {17}^{2}$
$225 + {b}^{2} = 289$
subtract 225 from 289
${b}^{2} = 64$
square root both b and 64
the other leg is equal to 8