CPM Homework Banner

Home > PC > Chapter 9 > Lesson 9.2.2 > Problem 9-84


Two submarines left the Long Beach Shipyard, one at a speed of knots and the other at a speed of knots. Their courses diverged by . After hours, how far apart are they? (Note: A knot is a measure of speed defined as one nautical mile per hour. A nautical mile is meters or kilometers.)

Draw and label a diagram. Note that the values given are speeds, not distances.

Once you have calculated the distances the submarines have each traveled after hours, use the Law of Cosines.