Answer:
Volume of a Rectangluar Prism: 288 ft
Volume of triangular prism: 12 ft
Volume of composite figure: 300 ft cubed (^3)
Explanation:
Volume of a Rectangluar Prism: V=lwh
![4 * 6 * 12 = 288](https://img.qammunity.org/2021/formulas/mathematics/middle-school/s0avzb00oby83c4ocnhlw6sd60lmd57rzy.png)
Volume of triangular prism: For this instance, we'll use V=1/2bh
![(4 * 6)/(2) = 12](https://img.qammunity.org/2021/formulas/mathematics/middle-school/vqqg6yz544y00xrpkbirs1o35mjlq9u45i.png)
The volume of the composite figure is the total of the volumes added
![288 + 12 = 300ft ^(3)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/ayn1xb26l8afqz86c5w0tas2cfobhqb7fg.png)