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Mathematics

Answered

What is the surface area of a cone that has a radius of 8 feet and a slant height of 12 feet? (Use 3.14 for π.)

301.44 ft 2

502.4 ft 2

200.96 ft 2

803.84 ft 2

Answer :

calculista calculista

Today at 10:58 AM

Answer:

[tex]SA=502.4\ ft^2[/tex]

Step-by-step explanation:

we know that

The surface area of a cone is equal to

[tex]SA=\pi r^{2}+\pi rl[/tex]

we have

[tex]r=8\ ft\\l=12\ ft\\\pi=3.14[/tex]

substitute the given values

[tex]SA=(3.14)(8^{2})+(3.14)(8)(12)[/tex]

[tex]SA=200.96+301.44=502.4\ ft^2[/tex]

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