Math Help - A and B

1. A and B

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

2. Originally Posted by aeroflix
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.

law of sines ...

$\displaystyle \frac{AB}{\sin{C}} = \frac{650}{\sin{B}}$