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