geometry
posted by Anonymous .
A field is in the form of a triangle pictured below. Angle A is 85± and angle B is 78±. The distance between B and C is 269 feet. Find, to the nearest foot, the distance between A and B.

angle C is 1808578 = 17
c/sinC = a/sinA
c/sin17 = 269/sin85
c=79