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A right cone has a radius of 5 cm and a slant height of 13 cm. Find its surface area. Question 3 options: A) 90 cm2 B) 282.7 cm2 C) 300 cm2 D) 942.5 cm2

Respuesta :

sqdancefan

Answer:

  B) 282.7 cm^2

Explanation:

Surface area of a cone is given by the formula ...

  A = πr² +πrh . . . . . . . where r is the radius, and h is the slant height

  A = πr(r +h)

For the given cone, the area is ...

  A = π(5 cm)(5 cm + 13 cm) = 90π cm²

  A = 282.7 cm² . . . . surface area of the cone

janlee113

Answer:

B. 282.7 cm²

Explanation:

A right cone has a surface area of 282.7 cm²