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# Anna has a 10-foot long ladder

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Anna has a 10-foot long ladder that she is going to rest against a vertical wall along the bottom of a window-sill that is 8.5 feet above the ground. The safety code recommends that the angle the ladder makes with the ground be no greater than 65°. Will the ladder be safe resting on the window sill?

Guest Mar 2, 2018

#1
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The ladder is the hypotenuse of a right triangle.  10ft

The leg opposite the angle in question is 8.5 ft

arcsin (8.5/10) = 58.2 degrees     It is OK!

ElectricPavlov  Mar 2, 2018
edited by Guest  Mar 2, 2018
Sort:

#1
+12117
+2

The ladder is the hypotenuse of a right triangle.  10ft

The leg opposite the angle in question is 8.5 ft

arcsin (8.5/10) = 58.2 degrees     It is OK!

ElectricPavlov  Mar 2, 2018
edited by Guest  Mar 2, 2018

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