Experimental Uncertainties, Physics

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you are trying to measure the diameter of a circular lab table using a lab metre stick. you measure the diameter in several directions and find the following results: 98.5 cm, 1.00 m, 97.80 cm. Determine the area of the table. Estimate the uncertainty in the area of the table. What is different about the methods you use to estimate the uncertainty in the diameter and the uncertainty in the area?

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