ELGuapo8350 ELGuapo8350
  • 12-02-2020
  • Mathematics
contestada

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?

Respuesta :

arokoyuola
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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