braxxtonmoore
braxxtonmoore braxxtonmoore
  • 01-10-2017
  • Mathematics
contestada

What is the surface area of a sphere with a diameter of 16 cm?

A. 1,024n cm²

B. 32n cm²

C. 256n cm²

D. 128n cm²

Respuesta :

dugisharmaox4b36
dugisharmaox4b36 dugisharmaox4b36
  • 01-10-2017
C is the correct answer
Answer Link
DelcieRiveria DelcieRiveria
  • 24-05-2019

Answer:

The correct option is C. The surface area of a sphere is 256π cm².

Step-by-step explanation:

Given information: The diameter of the circle is 16 cm.

[tex]r=\frac{d}{2}=\frac{16}{2}=8[/tex]

Radius of the circle is 8 cm.

Surface area of a sphere is

[tex]A=4\pi r^2[/tex]

Where, r is radius.

[tex]A=4\pi (8)^2[/tex]

[tex]A=4\pi (64)[/tex]

[tex]A=256\pi[/tex]

The surface area of a sphere is 256π cm². Therefore the correct option is C.

Answer Link

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