CK-12 Geometry-Concepts

(Marvins-Underground-K-12) #1

11.6. Cones http://www.ck12.org


484 π=

1


3


πr^2 ( 12 )

121 =r^2
11 =r

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Find the surface area and volume of the right cones. Leave your answers in terms ofπ.


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3.


ChallengeFind the surface area of the traffic cone with the given information. The gone is cut off at the top (4 inch
cone) and the base is a square with sides of length 24 inches. Round answers to the nearest hundredth.

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