lilyalvis lilyalvis
  • 26-03-2019
  • Mathematics
contestada

a sphere has a volume of 36 (3.14) cm cube. what is the diameter of the sphere

Respuesta :

gmany
gmany gmany
  • 29-03-2019

Answer:

Diameter = 6 cm

Step-by-step explanation:

The formula of a volume of a sphere:

[tex]V=\dfrac{4}{3}\pi R^3[/tex]

We have V = 36(3.14) cm³ = V = 36π cm³. Substitute:

[tex]\dfrac{4}{3}\pi R^3=36\pi[/tex]      divide both sides by π

[tex]\dfrac{4}{3}R^3=36[/tex]           multiply both sides by 3

[tex]4R^3=108[/tex]            divide both sides by 4

[tex]R^3=27\to R=\sqrt[3]{27}\\\\R=3\ cm[/tex]

The diameter D = 2R.

Therefore D = 2(3 cm) = 6cm

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