What's the lateral area and surface area of a right cone with radius 6 cm and slant height 13 cm?

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Answer 1 · 2018-06-04T22:38:14

#"Lateral Area" = πr ℓ#

#color(white)("Lateral Area") = 22/7 × "6 cm × 13 cm"#

#color(white)("Lateral Area") = 245.1\ "cm"^2#

#"Surface Area" = πr(r + ℓ)#

#color(white)("Surface Area") = 22/7 × "6 cm" × ("6 cm + 13 cm")#

#color(white)("Surface Area") = 132/7\ "cm" × "19 cm"#

#color(white)("Surface Area") = 358.3\ "cm"^2#