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.
1.
2.
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.