Apply Volume Formulas
Middle School Math · Flashcards · Application
MIDDLE SCHOOL MATH · FLASHCARDS
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QUESTION
A cylinder has
V
=
72
π
V = 72\pi
V
=
72
π
and
r
=
3
r = 3
r
=
3
. What is the height
h
h
h
?
QUESTION
A sphere has diameter
8
8
8
. What is
V
V
V
in terms of
π
\pi
π
?
QUESTION
A cylinder has height
h
h
h
. If radius doubles from
r
r
r
to
2
r
2r
2
r
, how does volume change?
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ANSWER
Volume quadruples:
V
→
4
V
V \to 4V
V
→
4
V
. Volume is proportional to
r
2
r^2
r
2
, so doubling
r
r
r
quadruples
V
V
V
.
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