Which Expressions Can Be Used To Find M∠Abc? Select Two Options. Cos−1(Startfraction 9.8 Over 6.3 Endfraction) Cos−1Startfraction 6.3 Over 9.8 Endfraction) Cos−1(Startfraction 7.5 Over 9.8 Endfraction) Sin−1(Startfraction 9.8 Over 7.5 Endfraction) Sin−1(Startfraction 7.5 Over 9.8 Endfraction). The** expressions used to fin d m∠abc** is** cos⁻¹ (6.3/9.8) and sin⁻¹ (7.5 / 9.8).** trigonometric. A right triangle has side lengths ac = 7 inches, bc = 24 inches, and ab = 25 inches.

A right triangle has side lengths ac = 7 inches, bc = 24 inches, and ab = 25 inches. The** expressions used to fin d m∠abc** is** cos⁻¹ (6.3/9.8) and sin⁻¹ (7.5 / 9.8).** trigonometric. Practice finding the measures of angles in right triangles using trigonometric functions and equations.