Question 26067
Use the Pythagorean theorem{{{a^2 + b^2 = c^2}}} to determine the length of the hypotenuse, c.

{{{c = sqrt(15^2 + 20^2)}}}
{{{c = sqrt(225 + 400)}}}
{{{c = sqrt(625)}}}
{{{c = 25}}}
The length of the hypotenuse is 25cm.