A beam 25 feet long leans against a wall. If the top of the beam rests at a point on the wall 17.5 feet above the floor, what is the angle the beam makes with the wall?© BrainMass Inc. brainmass.com March 4, 2021, 6:08 pm ad1c9bdddf
hypotenuse= length of the beam= 25 feet
altitude= 17.5 feet
Therefore Sin phi = ...
Answers a trigonometry question.