Answer:
![A=24](https://img.qammunity.org/2022/formulas/mathematics/college/uomn9sp9n2el54xkrr7td1bruov2sxut4f.png)
Explanation:
For finding the area of a trapezoid you first have to use the correct formula which is
.
Now we plug in what we already know.
![A=(1)/(2)(b_1+b_2)h\\A=(1)/(2)(5+7)(4)](https://img.qammunity.org/2022/formulas/mathematics/college/z8v4nb9zn4xhyaj3z2wtnokjwiugngmhus.png)
Now we start with the parenthesis
![A=(1)/(2)(12)(4)](https://img.qammunity.org/2022/formulas/mathematics/college/z3bt2ytlmuw6zyyedzh44q0dn17lxtpold.png)
Now if you can, you can multiply the 1/2 and the 12 and the 4 using a calculator or mentally
![A=24](https://img.qammunity.org/2022/formulas/mathematics/college/uomn9sp9n2el54xkrr7td1bruov2sxut4f.png)