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MATH / The diameter of a circle is 16. By what number must the radius be decreased in…

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problem

The diameter of a circle is 16. By what number must the radius be decreased in order to decrease the area of the circle by 48π48\pi?
Plain-text mathematical notation (without MathML)
The diameter of a circle is 16. By what number must the radius be decreased in order to decrease the area of the circle by 48π?
Original LaTeX notation
The diameter of a circle is 16. By what number must the radius be decreased in order to decrease the area of the circle by $48\pi$?

level

Level 4

type

Prealgebra

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