Answer:
48 cm^2
Explanation:
We can substitute the h in the given equation with 8.
1/2 * (8+4) * 8
Next we can add inside the parenthesis
1/2* (12) * 8
Another way we can write 1/2* 12 is 12 divided by 2 which is equivalent to 6.
So, now our equation is 6*8
6*8 = 48 so our answer is 48 cm^2
Hope this Helps!!! :)