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

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

It’s 24.6 after you round to the nearest tenths the answer should be 25.0