12.64911064067352 feet

is the hypotenuse, the length
of the "C" side of the triangle.

A roofing contractor needs to calculate how much material to purchase to
finish the roof. He doesnt have a ladder to get the length of the rafters.
Calculate the measurement using the Pythagorean Theorem.

Calculate the hypotenuse of the
triangle to the nearest hundredth.

start by using the
equation:

a^{2} + b^{2} = c^{2}

a = 12 , b = 4^{
}

Click here

to see how we figured it out.