A new homeowner has a triangular-shaped back yard. Two of the three sides measure 65 ft and 80 ft and form an included angle of 125 . The owner wants to approximate the area of the yard, so that he can determine the amount of fertilizer and grass seed to be purchased. Find the area of the yard rounded to the nearest square foot. A. 4260 sq ft O B. 2130 sq ft O C. 2129 sq ft O D. 5200 sq ft