Question

A right triangle has an adjacent side of 9 units and a hypotenuse of 15 units. Find the angle adjacent to the 9-unit side using the inverse cosine function.(1 point)

53.1

53.7

48.2

46.4

Answer 1

cos⁻¹(9/15) = cos⁻¹(0.6) ≈ 53.13°, so the angle is 53.1° (rounded).