universaldazed universaldazed

04-03-2018
Mathematics

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Explain why you can use πr2 to find the area of the base of a cone

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susanwiederspan susanwiederspan

04-03-2018

The base of a cone is a circle.

The area of a circle is [tex] \pi r^2[/tex].

Thus, the area of the base of a cone [tex] \pi r^2[/tex].

The derivation of the formula for the area of a circle involves a bit of calculus, but if you'd like, I can walk you through it.

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