The length of the ladder

Algebra Level 1

A building is 60 60 feet high.

The lower end of a ladder is 45 45 feet from the wall of the building and

its upper end touches the roof of the building.

What is the length of the ladder in feet?


The answer is 75.

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1 solution

Vishnu Mech
Nov 27, 2017

Let the Given problem be considered as an

Triangle ABC

LET AB=60 ft

    BC=45 ft

Then AC^2=AB^2+BC^2

              =6Osqr+45sqr

AC=sqrroot(5625)

AC=75ft.

Thus the length of the ladder is 75ft Thanks 😃

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