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A right cone has a base diameter that is 12 cm and a slant height that is 45 cm What is the surface area of the cone?
Wiki User
∙ 13y ago
Formula for surface area of a cone: π=pi (3.14159265) l=slant height, r=radius.
πr2+πrl
π62+π6*45=x
36π+270π=x
306π=x
961.33 cm2
Wiki User
∙ 13y ago
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