11ft ladder leans against a house, the base is 3ft away, the ladder will reach what feet against the building

Answer 1

3^2 + h^2 = 11^2
h^2 = 112
h = √112 = ...

Answer 2

Pythagorean theorem:

√ (11² - 3²) = √ (121 - 9) = √ 112 = 10.583 ft

Answer 3

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