Draw a circle of radius r on 1/2 an graph paper and then on a 2mm graph paper

draw a circle of radius r on 1/2 an graph paper and then on a 2mm graph paper. Estimate the area enclosed in each case by actually counting the squares. Now try out with circles of different radius. Establish the pattern if any, between the two observed values and the theoretical value. (area= πr²) any modifications?

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