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**+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

#1**+2 **

Best Answer

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