If β=81°,γ=65°,c=12.12, find all unknown side lengths and angle measures. Round to the nearest hundredth for side lengths and angles, as needed.

Question

If β=81°,γ=65°,c=12.12, find all unknown side lengths and angle measures. Round to the nearest hundredth for side lengths and angles, as needed.

Answer 1

α = 180° - β - γ

β / sin 81° = 12.12 / sin 65°

a / sin α = 12.12 / sin 65º