Question: What is the difference in surface area between two circles, one of radius 7.98 cm, the other of radius 8.50 cm? The surface area of

What is the difference in surface area between two circles, one of radius 7.98 cm, the other of radius 8.50 cm? The surface area of a circle of radius r is πr2. Obtain the result to the correct number of significant figures.

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