i have a trapezoid that is 6in. on top with 12in. sides that is going to be a concrete berm 30ft. long how do?

Question

i have a concrete berm 6inches wide on top with 12inch slopes that is going to be 30 ft long how do i figure out how many cubic yards of concrete ill need

Answer 1

The angle of your slope will determine the length of the base, but the area of a trapezoid is found as follows:

1/2 h(b1+b2), where h will be the height, b1 will be 6 inches, and
b2 will be whatever the bottom length is.

Since it will be 30 ft long, you can multiply that result by 30.

Then, you'll need to convert all units to cubic yards.

Regards,

Mysstere