The curved surface of a cylinder is 250 cm². If the cylinder is 12 cm high, find it's volume. Correct to 2 d.p.
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Answered by
0
Step-by-step explanation:
Diameter of cylinder = 20 cm
Radius (r) =
2
20
=10cm
CSA=1000cm
3
2πrh=1000
2(3.14)(10)h=1000
h=
2(3.14)(10)
1000
=15.9cm
and volume = πr
2
2h
=(3.14)(10)
2
(15.9)
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Answered by
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Answer:
Volume of cylinder 414.2990075757cm³
Step-by-step explanation:
CSA of cylinder=2πrh
250=2*(22/7)r*12
250/2=(22/7)r*12
125=(264/7)r
125*7=264r
875/264=r
3.3143939393....cm=r or 3.314393..cm=r
Volume of cylinder=πr²h
=(22/7)*3.314393²*12
=(22/7)*10.985200958449*12
=(241.674421085878/7)*12
=34.52491729798*12
=414.2990075757cm³
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