A circular pizza of radius R has a circular piece of radius removed from one side,as shown in the figure.The center of mass of the pizza with the hole is at a distance of R/6 from the center of mass of the original pizza.The radius of the circular piece removed is 
Definitions:
Average Total Cost Curve
A graphical representation showing the average total cost of producing different quantities of output.
Purely Competitive Firm
A company that operates in a market where there are many buyers and sellers, the products are homogeneous, and there are no barriers to entering or exiting the market.
Economic Profit
The financial delta observed when a business's total outgoings, including every form of cost, are removed from its total intake.
MR = MC Rule
An economic principle stating that profit maximization occurs when a firm's marginal revenue equals its marginal cost.
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