Question 470710
A window washer leans a ladder up against a wall so that the top of the ladder
 touches the base of the window ,as shown below .
The bottom of the ladder is 15 feet from the wall ,and the base of the window is 26 feet from the ground .
what is the length of the ladder to the nearest foot?
:
This is a right angle triangle problem, c^2 = a^2 + b^2 
Where
a = 15
b = 26
c = length of ladder
:
c^2 = 15^2 + 26^2
c^2 = 225 + 676
c = {{{sqrt(901)}}}
c ~ 30 ft ladder