asd233
Answered

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A cylindrical can of baked beans has a diameter of 8 cm and a height of 9 cm.

What is the exact volume of the can?



A.
72π cm³


B.
144π cm³


C.
648π cm³


D.
2304π cm³

Sagot :

Formula for volue of cylinder is area time height. Lets find area
A=[tex] \pi r^2[/tex]
diameter=2r
8=2r
r=4
Now substitute r to [tex]A= \pi r^2[/tex]
A=[tex] \pi 4^2= 16\pi [/tex]
Now we have formula
V=[tex]16 \pi *height=16 \pi *9=144 \pi [/tex] - its the result, so B 
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