aarogill23 aarogill23
  • 07-07-2017
  • Mathematics
contestada

An 18-foot ladder is leaning against a vertical brick wall. The base of the ladder is 9 feet away from the wall.

At what angle does the ladder meet the wall?

Respuesta :

janaebensonosmzer
janaebensonosmzer janaebensonosmzer
  • 07-07-2017
a^2 + b^2 = c^2
a^2 + 9^2 = 18^2
a^2 + 81 = 324
a^2 = 243
a = 15.589 = 15.6 feet is the angle the ladder is at :)
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