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Please help Iv'e been waiting all day!

What is the approximate volume of a cylinder with a diameter of 12 meters and a height of 7 meters? Use 3.14 for pi.


A.


131.9 m3


B.


263.8 m3


C.


791.3 m3


D.


3165.12 m3

Respuesta :

JcAlmighty
The answer is C. 791.3 m3

The volume of the cylinder (V) is:
V = π · r² · h        (r - radius, h - height)

It is known:
π = 3.14
d = 12 m ⇒ r = d/2 = 12/2 = 6 m
h = 7m

Thus:
V = π · r² · h = 3.14 · 6² · 7 = 3.14 · 36 · 7 = 791.28 m³ ≈ 791.3 m³

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