Answer:
Area of Base = 28in^2
Area of prism = 280 in^3
Explanation:
Area of a trapezoid:
{(a+b)/2}*h a and b are the bases
Plug in the formula to the information:
{(9+5)/2}*4
(14/2)*4
7*4
28 in^2
Now multiply by 10 for the prism (it is 10 in tall):
28*10=280 in^3