27 cubic feet.
You can get this because the surface area formula shows that each edge is 3ft. the area would be length x width x height, which are all 3.
How to get answer by JKismyhusbandbae: To get the answer you would multiply
Pi(3.14) times Radius which is R otherwise 80 square times H which is height 1.3.
It will need around 26138.050... and more it is not a repeating decimal I just simplified it.
A(0,-1)
B(3√3/3, 2)
Slope of AB = (y₂ - y₁)/(x₂-x₁)
Slope = (2-1)/(√3/3 , -0)
Slope = 1/√3/3 = 1/√3 = √3/3
OR SLOPE = tan(a°) = √3/3 and a° = 30°