A18-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 14 feet from the base of the building. how high up the wall does the ladder reach?

11.31ft

Step-by-step explanation:

This is followed up by the use of the Pythagorean theorem which is stated as where a and b are the "legs" of a triangle and c is the hypotenuse.

Since, the ladder is 18 foot high, so this will be the value of the c and the value of bis given as 14feet.

Therefore, using

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The height of the wall is 11.31ft.

ok thats very interesting