ELGuapo8350 ELGuapo8350

12-02-2020
Mathematics

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A 100ft ladder rests on top of a hook and ladder truck with its base 11 feet from the ground. When the angel of elevation of the ladder is 81", how high up the building will the ladder reach?

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arokoyuola arokoyuola

13-02-2020

Answer:

99.39ft

Step-by-step explanation:

From Pythagoras theory,

x² = 100² - 11²

x² = 10000 - 121

x² = 9879

x = 99.39ft

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