Answer: 63.9 yd^2 (as in yards squared)
Step-by-step explanation:
1. Your formula is A=a+b/2*h, as in h times everything. a is your shorter base, b is your longer base, and h is the height.
2. Plug in the numbers. A=4.3+9.9/2*9.
3. A=14.2/2*9
4. A=7.1*9
5. A=63.9 yd^2
