### Home > PC3 > Chapter 6 > Lesson 6.1.3 > Problem6-46

6-46.

Solve for $x$ in each of the following triangles. What methods can be used for each part?

1. This is a right triangle, so use sine, cosine, or tangent.

Use the Law of Sines.

Use the Law of Cosines.

$\cos(x)=\frac{3^2-10^2-11^2}{-220}$