A 20 ft ladder leans against a building and reaches a point 13 ft above the ground. Find, to the nearest degree, the angle that the ladder makes with the ground
Since it forms a "right triangle" we can apply trigonometry. sin x = oppo/hyp sin x = 13/20 x = sin^-1(13/20) x = sin^-1(0.65) x = 40.5 rounded to nearest degree x = 41 degrees
