The formula of a volume of a cube:

We have 
Substitute:
![a^3=474.552\to a=\sqrt[3]{474.552}\\\\a=7.8\ m](https://tex.z-dn.net/?f=a%5E3%3D474.552%5Cto%20a%3D%5Csqrt%5B3%5D%7B474.552%7D%5C%5C%5C%5Ca%3D7.8%5C%20m)
Answer: The length of each side of the box is equal 7.8 m.
Since, each side of the fence should have the 1 3/4 feet wide decorative piece, the width of the fence should be subtracted by 2 pieces (1 3/4 feet)
= 26.5 feet
Then, divide the remaining width by 4.5 feet and the answer is 5.88. Thus, approximately 5 pieces of the 4 1/2 feet should be installed.
Answer:
C. 189
Step-by-step explanation:
Each triangle is 27 which makes it 108, and 108+81=189