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Mathematics 18 Online
OpenStudy (anonymous):

what is the surface area of the right cone?

OpenStudy (anonymous):

OpenStudy (tkhunny):

Isn't it according to the well-established formula? \(\pi r (r+s)\) We have r = 4 and s = 13. Seems like we're done.

OpenStudy (anonymous):

but what is the surface area?

OpenStudy (tkhunny):

Asked and answered. Substitute the given values.

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