Question

A ladder of 17 ft length reaches a window which is 15 ft above the ground on one side of the street. Keeping its foot at the same point the ladder is turned to the other side of the street and now it reaches a window 8 ft high. What is the width of the street?

Answer 1

8ft

Step-by-step explanation:

window and street makes angle of 90°with each other so a right triangle is formed

h=17ft p=15 ft

by applying pythagoras theory

h^2=p^2+b^2

we get b=8

which is the width of street