Formula
[tex]\text{ Area = }\frac{B\text{ + b}}{2}\text{ h}[/tex]B = long base
b = short base
h = height
Counting the number of squares:
B = 8
b = 6
h = 4
Substitution
[tex]\begin{gathered} \text{ Area = }\frac{(8\text{ + 6)}}{2}4 \\ \text{ Area = }\frac{14}{2}4 \\ Area=\frac{56}{2}\text{ } \\ \text{Area = 28} \end{gathered}[/tex]