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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
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Mar 16, 2017
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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
Mathematics
high-school
Ilona
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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
Fabian Strathaus
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Mar 21, 2017
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Fabian Strathaus
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