CPM Homework Help : A2C Problem 13-73

Solve for $x$ in the figure below.

Triangle, labeled as follows: left side, 6, right side, 4, top side, x, bottom vertex angle, 130 degrees.

Hint:

You are working with $3$ sides and one angle. Use the Law of Cosines to find the value of $x$ .

Answer:

$x = 9.10$