tavionross3 tavionross3
  • 19-12-2017
  • Mathematics
contestada

the bottom of a ladder must be placed 3 feet from a wall. the ladder is 12 feet long. how far above the ground does the ladder touch the wall

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choc0late choc0late
  • 29-12-2017
You would use the Pythagorean theorem. Lets say that how far above the ground the ladder touches the wall is x.


x^2 = 12^2 - 3^2
x^2 = 144-9
x^2= 135
x=sqrt(135)
x=about 11.6
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