Question

A triangle has a hypotenuse of 153 centimeters and a leg of 72 centimeters what is the length of the other leg

Answer 1

Pythagorean theorem = $\sqrt{a^{2} + b^2 +c^2 }$
Since you only have $a^{2}$ and $c^2$ you change the equation to $\sqrt{c^2 - a^2 = b^2}$
Giving you $\sqrt{153^2 - 72^2$ = 135