Answer:
![V=108\ cm^(3)](https://img.qammunity.org/2019/formulas/mathematics/high-school/ni3e8o61fr9ez1d86ndshbcsiez0qoexwi.png)
Explanation:
we know that
The volume of a pyramid is equal to
![V=(1)/(3)Bh](https://img.qammunity.org/2019/formulas/mathematics/college/3jiim3kajkl534p2wzlfghfoyh9dq841d7.png)
where B is the area of the base of the pyramid
h is the height of the pyramid
Step 1
Find the area of the base B
The area of a square is equal to
![B=b^(2)](https://img.qammunity.org/2019/formulas/mathematics/college/lnh54mvvtd8864pzo6hwc0alvhtegredmk.png)
where
b is the length side of the square
we have
![b=6\ cm](https://img.qammunity.org/2019/formulas/mathematics/high-school/2qsswvh7en888xi5kzau7r0fbfb0ooc7pl.png)
substitute
![B=6^(2)=36\ cm^(2)](https://img.qammunity.org/2019/formulas/mathematics/high-school/79p8storcbcuvjawfw0sk7czufnxmkx8rg.png)
Step 2
Find the volume of the pyramid
![V=(1)/(3)Bh](https://img.qammunity.org/2019/formulas/mathematics/college/3jiim3kajkl534p2wzlfghfoyh9dq841d7.png)
we have
![B=36\ cm^(2)](https://img.qammunity.org/2019/formulas/mathematics/high-school/fre6g6h5tac1jxmadwtv0rnb58kfx9eioa.png)
![h=9\ cm](https://img.qammunity.org/2019/formulas/mathematics/high-school/pb7f57rju991cjhimfxhjhpymyieinxtgc.png)
substitute
![V=(1)/(3)(36)(9)=108\ cm^(3)](https://img.qammunity.org/2019/formulas/mathematics/high-school/dmyc6c9yft9qj7bukqousng3iwxve24s1x.png)