Question

Find the measurement indicated. Round your answer to the nearest tenth. NO LINKS!!​

Answer 1

m∠A ≈ 39.865°

Explanation:

C² = 16² + 15² - 2 × 16 × 15 × cos (97°)

=> C = 23.22708085

sin (97°)/23.22708085 = sin A/15

=> sin A = sin (97°) × 15/23.22708085

=> A =
`sin^(-1)`(sin (97°) × 15/23.22708085)

=> A ≈ 39.865