Answer:
310 inches²
Explanation:
Given: A rectangular prism cage has a height of 28 inches.
Volume of prism is 8680 cubic inches.
We know the area of base of rectangular prism is equal to the area of rectangle.
∴ Lets find out the lenght and width of rectangular prism.
Volume of rectangular prism=
![w* l* h](https://img.qammunity.org/2021/formulas/mathematics/middle-school/h4bim37nss54xol91lijaozhs1lxd8jfrz.png)
Where, w is width
l is length
h is height.
Now, putting the value in the formula of volume.
⇒
![8,680= w* l* 28](https://img.qammunity.org/2021/formulas/mathematics/middle-school/a3f6d6qdhea11tyn2b81vtvno50sgy3bod.png)
cross multiplying
⇒
![wl= (8680)/(28)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/zqjqqg47j1un2vdjloumf35qe48fgg9vbz.png)
∴ wl= 310 inches²
As we need to find the area of the plastic mat on the bottom of the cage, which is rectangle in shape.
Area of rectangle=
![wl](https://img.qammunity.org/2021/formulas/mathematics/middle-school/58rehca5g1nc3k8ikki3wfxz2p3vwd0sik.png)
∴ Area of rectangle= 310 inches²
Hence, 310 inches² is the area of the plastic mat on the bottom of the cage.