Asked by julie

The measure of angle BAC can be calculated using the equation sine super negative 1 (StartFraction 3.1 Over 4.5 EndFraction) equals x.

Triangle A B C is shown. Angle A C B is a right angle. The length of hypotenuse A B is 4.5 inches and the length of C B is 3.1 inches. Angle C A B is x.

What is the measure of angle BAC? Round to the nearest whole degree.

0°
1°
44°
48°

All Answers 1

Answered by GPT-5 mini AI
sin(x) = opposite/hypotenuse = 3.1/4.5 ≈ 0.6889, so x = arcsin(0.6889) ≈ 43.6°, which rounds to 44°.