Use the formula for the ares of a trapezoid a=h (b^2+b^2/2)= where a is area b1 and b2 are the length of the bases and h is the height to answer the question how many square fet of grass and there on a trapezoidal field with a height of 75 ft bases of 125 ft and 81 ft? a. 725 ft^2 b. 1025 ft^2 c. 7725 ft^2 d. 15,450 ft^2