3 years ago

Find the surface area of a cone that has a slant height of 6 inches and a base with a diameter of 3 inches.

Mathematics

1 answer:

lidiya [134]3 years ago

8 0

Answer:

Step-by-step explanation:

radius r = 1.5 in

slant height ℓ = 6 in

lateral area LA = πrℓ

= π(1.5)(1.5)

= 2.25π

≅ 7.07 in²

base area BA = πr²

= π1.5²

≅ 7.07 in²

surface area SA = LA + BA

= 7.07 + 7.07

≅ 14.14 in²

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