Answer:
406.08
Explanation:
First FInd the area of the rectangle : which is short side * long side
-> 15*12=180m
Then find the area of the half circle, the formula of the area of a circle is
![\pi r^2](https://img.qammunity.org/2023/formulas/mathematics/college/ptr0qrr4mhrdlntiy0x3rg3tx93ixeolww.png)
here it's half a circle so it's
where r is 12
->
![3.14\cdot (\left(12\right)^2)/(2)=226.08 m](https://img.qammunity.org/2023/formulas/mathematics/high-school/89eedhae4v37lwddzsa4zv6ueoigh7b733.png)
Finally just add the area of the rectangle with the area of the half circle
->
![180+226.08=406.08 m](https://img.qammunity.org/2023/formulas/mathematics/high-school/tx5md33qxnrkjmddjth9e8zrmai416pv4w.png)