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omeli [17]
2 years ago
15

The volume of a cylinder closed at one end is 1056cm³. If it's height is 21cm ,

Mathematics
1 answer:
Darina [25.2K]2 years ago
6 0

Answer:

8cm

Step-by-step explanation:

volume = πr²h

1056 = 22/7 (π) ×r²× 21

1056=66r²

r²= 16

r= 4

but diameter = 2r

D= 2×4

=8

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Answer:

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Using Elimination method

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Subtract Equation 4 from Equation 3

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Substitute

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