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Naily [24]
2 years ago
11

Find the volume of the cylinder if the radius is 4.5cm and the height is 8cm. Use 3.14 for TT

Mathematics
1 answer:
Nookie1986 [14]2 years ago
7 0

Answer:

508.68cm²

Step-by-step explanation:

Volume of a cylinder = πr²h

given r=4.5 cm h =8cm and π=3.14

so volume=

3.14×4.5×4.5×8

=508.68cm²

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Step-by-step explanation:

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The outer rectangle is 5.6 by 6.4 cm.  To get its area, just multiply those dimensions. When you do so you get the area 35.84cm².

Next the inner rectangle needs to be subtracted.  First though, we need its width, which we're not directly given.

We do however know the width of the entire shape, and the width of segments left after cutting out the inner rectangle.  All we need to do then is subtract the later from the former to the the inner rectangle's width:

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