Answer:
[tex]A=36m^2[/tex]
Step-by-step explanation:
a = long base
b = short base
h = height
[tex]A = \frac{(a+b)}{2} * h[/tex]
[tex]A = \frac{(8+4)}{2} * 6[/tex]
[tex]A = \frac{12}{2} * 6[/tex]
[tex]A = 6*6[/tex]
[tex]A=36[/tex]