Two banks of a river are parallel, and the distances between two trees A and B along one bank is 800 ft. A third tree C grows on the opposite bank. From a vantage point at tree A, the angle measured between the riverbank and tree C is 37 degrees. From B, the angle measured between the riverbank and tree C is 61 degrees.
a). Sketch a picture of the scenario described with the given angles and distances labeled.
b). Determine the exact width of the riverbank symbolically.
I got the picture right, but not the symbolic answer.

Question

Two banks of a river are parallel, and the distances between two trees A and B along one bank is 800 ft. A third tree C grows on the opposite bank. From a vantage point at tree A, the angle measured between the riverbank and tree C is 37 degrees. From B, the angle measured between the riverbank and tree C is 61 degrees.
a). Sketch a picture of the scenario described with the given angles and distances labeled.
b). Determine the exact width of the riverbank symbolically.
I got the picture right, but not the symbolic answer.