What is volume in cubic yards of spoil from ditch 18″ wide at the bottom, by 3` deep, by 300` long. The sides of the trench slope at a ratio of 1:1.

What is volume in cubic yards of spoil from ditch 18″ wide at the bottom, by 3` deep, by 300` long. The sides of the trench slope at a ratio of 1:1.