Question

A 16.5 ft long ladder is leaned against a wall. The ladder reaches the wall to a height of 13.2 ft. Find
the distance between the wall and the foot of the ladder.
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Answer 1

.............................. Answer... 9.9ft

Answer 2

Answer:

9.9 ft

explanation

let 16.5 ft be hypotenuse of the triangle

and 13.2 ft be one of the side

so ab2= ac2-bc2

so ab =√16.5^2-13.2^3

so ab =√272.25-174.24

ab = √98.01

ab= 9.9