CPM Homework Banner

Home > CCA2 > Chapter 12 > Lesson 12.2.1 > Problem 12-105


Find in each triangle below.

  1. Triangle labeled as follows: left side, 8, right side, 12, bottom side, 10, right bottom vertex, c.

    Use the Law of Cosines to solve this problem.


  1. Right triangle labeled as follows: horizontal leg, 13, vertical leg, 7, vertex opposite vertical leg, c.

    This is a right triangle, and you know the lengths of both legs. Which trig function uses this information?