You work for a company that is installing a sewer manhole. The chamber and piping under the manhole are to be buried in the ground. You must dig a hole large enough for the manhole chamber and its concrete base. The dimensions of the chamber and base are in a drawing. Use the drawing below to answer this question. Click on enlarge to see a larger view of the drawing. Enlarge drawing select the best answer based on the drawing, what is the minimum diameter for the chamber and its concrete base? 4 feet 4 feet 10 inches 5 feet 10 inches 6feet 10 inches