Question 559794
let distance of foot of ladder be x
height will also be x
ladder length = 40
The ladder ,ground and the wall form a right triangle					
ground distance = leg2					
height at which ladder touches					
Hypotenuse = ladder length					
Pythagoras theorem states that					
					
Hypotenuse ^2= leg1^2+leg2^2	

40^2=x^2+x^2
1600=2x^2
1600/2= x^2
800=x^2
take the square root
x=28.285 feet