In triangle mathrm{MNO}, m=89 inches, n=30 inches and o=71 inches. Find the measure of angle mathrm{M} to the nearest degree.

Question

Accepted Answer

Step:1 ：Using the Law of Cosines: (89^2 = 30^2 + 71^2 - 2(30)(71)cos(M))Step:2 ：Solving for M: (boxed{118}) degrees

Answer

Step: 1 ：Using the Law of Cosines: (89^2 = 30^2 + 71^2 - 2(30)(71)cos(M))Step: 2 ：Solving for M: (boxed{118}) degrees

In $\triangle \mathrm{MNO}, m=89$ inches, $n=30$ inches and $o=71$ inches. Find the measure of $\angle \mathrm{M}$ to the nearest degree.