Answer with Step-by-step explanation:
Length of ladder=13 ft
Height of building=12 ft.
We have to find the distance between base of ladder and the building
Let it be x
If we view the above problem as a right angled triangle
Then, Hypotenuse=13 ft.
Height=12 ft.
and Base=x
Applying the Pythagorean theorem
Hypotenuse²=Height²+Base²
⇒13²=12²+x²
⇒x²=13²-12²
⇒x²=169-144
⇒x²=25
⇒x=5
Hence, The ladder is 5 ft. away from the base of building
