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