give me full solution of question number 11
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Curved surface area=4800 cm^2.
Circumference=120 cm
Circumference=2πr
Curved surface area=2πrh
Circumference*Height=Curved surface area
Height=Curved Surface Area/Circumference
h=4800/120
h=40
2πr=120
r=120/2*22/7
r=188.4
Volume=πr²h
=3.14*188.4*188.4*40
=4458116.736 cm^3
Circumference=120 cm
Circumference=2πr
Curved surface area=2πrh
Circumference*Height=Curved surface area
Height=Curved Surface Area/Circumference
h=4800/120
h=40
2πr=120
r=120/2*22/7
r=188.4
Volume=πr²h
=3.14*188.4*188.4*40
=4458116.736 cm^3
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