Question

A 5m long ladder reaches a windows 3m high on one side of the street.the ladder is turned over to the opposite side of the street and is found to reach another window 4 m high .find the width of the street.

Answer 1

We would use Pythagoras theorem
a =4
b=?
c=5
a^2 + b^2 = c^2
=16+x^2=25
x^2=9
b=3
The width of the street is 3m