Question

In ΔQRS, the measure of ∠S=90°, QR = 82 feet, and RS = 60 feet. Find the measure of ∠R to the nearest tenth of a degree.

Answer 1

R=42.9703≈43

Explanation:

Deltamath

Answer 2

43.0°

Explanation:

cos∅=adj/hyp

cos∅=60/82

∅=cos-1 60/82

∅=cos-1 0.731707317073

∅=42.97028393174°

Round: 43.0°