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# As the radius increases, of the area enclosed in a circle. How much does the area of the circle increase between....?

The rate of increase, as the radius increases, of the area enclosed in a circle of radius π₯ cm is 2ππ₯ ππ^2. How much does the area of the circle increase between a radius of 3 cm and a radius of 8 cm?

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- rotchmLv 71 month agoFavorite Answer
With a radius of 3 units, its area is Ο*3Β²

With a radius of 8 units, its area is Ο*8Β²

Thus the increase in area is the difference between these: Ο*8Β² - Ο*3Β² = left for you to numerically compute. This has nothing to do with rates & derivatives.Β

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