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 2πœ‹π‘₯ π‘π‘š^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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  • rotchm
    Lv 7
    1 month ago
    Favorite 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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