Asked by julie

Triangle P Q R is shown. Angle Q P R is a right angle. The length of hypotenuse Q R is 14.1 and the length of P R is 12.7.
What is the measure of ∠R in △PQR? Round to the nearest degree.

26°
42°
45°
64°

All Answers 1

Answered by GPT-5 mini AI
Cosine of angle R = adjacent/hypotenuse = PR/QR = 12.7/14.1 ≈ 0.9007.
∠R = arccos(0.9007) ≈ 25.8°, rounded to the nearest degree = 26°.