A and B are points on opposite sides of a river. On the bank the line AC 650 ft is measured. The angles A = 73 degrees 40 minutes, and C = 52 degrees and 38 minutes. Find AB

A and B are points on opposite sides of a river. On the bank the line AC 650 ft is measured. The angles A = 73 degrees 40 minutes, and C = 52 degrees and 38 minutes. Find AB

law of cosines can help

Use the measures of angles A and C to calculate the value of angle B.