A CD tower is shaped like a cylinder and holds CDs with a diameter of 4.75 inches. If the CD tower is 12 inches tall, what is its volume in cubic inches? Use 3.14 for pi. Round your answer to the nearest hundredth.
a. 212.54 cubic inches
b. 231.56 cubic inches
c. 850.16 cubic inches
d. 867.34 cubic inches
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jhonyy9:
do you know formula for volume of a cylinder ?
deathscarewolf:
not really
jhonyy9:
V = area of base time high
jhonyy9:
area of base = ?
jhonyy9:
what is the base of a cylinder ?
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deathscarewolf:
it would be the 3.14 right?
jhonyy9:
this is just the value of pi
jhonyy9:
do you can draw a cylinder ?
deathscarewolf:
i did before and i just confused my self more
jhonyy9:
|dw:1606760889869:dw|
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jhonyy9:
so how you calcule the volume of this cylinder ?
deathscarewolf:
57?
jhonyy9:
what is this and how you ve got it ?
deathscarewolf:
i timesed 4.75 and 12 to get the 57
jhonyy9:
@Laylalyssa any idea to help ?
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deathscarewolf:
i might guess it
Laylalyssa:
So the diameter : 4.75 inches right
jhonyy9:
no
the area of base you need multiplie by height
deathscarewolf:
ya
jhonyy9:
@Laylalyssa continue pls
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Laylalyssa:
ok so, then radius = 4.65/2 inches.,,right
jhonyy9:
this is the right way
jhonyy9:
4,75
deathscarewolf:
ya
Laylalyssa:
Then the volume of the cylinder would be V= (3.14) (4.75/2)^2 (12)= 212.53875~~ 212.54 in^3. right
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deathscarewolf:
yes
Laylalyssa:
There fore, The volume of the cylinder would be
deathscarewolf:
a?
jhonyy9:
@Laylalyssa pls always ste by step
Laylalyssa:
step*
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Laylalyssa:
and ok
jhonyy9:
no direct answers
Laylalyssa:
That wasnt the whole answer it was jus part of it-
deathscarewolf:
thx for the help guys
Laylalyssa:
Wait so yk the answer?
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deathscarewolf:
a
Laylalyssa:
can I at least tell her if shes correct
jhonyy9:
@deathscarewolf next time you will can solve it alone ?
deathscarewolf:
ya thx for the help you two
Laylalyssa:
ur welcome :)
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