74) Use inverse sine, sin⁻¹ because you are trying to find the measure of the angle, x, and you are given opposite and hypotenuse. sin⁻¹(35/57) = 52.1182 D) 38° 75) Use inverse tangent, tan⁻¹ because you are given opposite and adjacent. tan⁻¹(20/26) = 37.5686 C) 38°
76) Use inverse sine because you are given opposite and hypotenuse. sin⁻¹(7/11) = 39.5212 D) 40° 77) Use inverse tangent because you are given opposite and adjacent. tan⁻¹(4/14) = 15.9454 D) 16°
