Finding area of triangle??? Solving for x
arctangent (lower left angle) = 12 / 5arctangent (lower left angle) = 2.4lower left angle = 67.38 degreessine (67.38) = x / 5x = 0.92254 5x = 4.6127area = .5 height basearea = .5 4.6127 * 13area = 29.983