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If the volume of q cylinder …

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If the volume of q cylinder is 3080 cm cube and the base radius is 7 cm , find the height of the cylinder. Also find( a ) curved surface area (b)total surface area.

Posted by Sundram Jha 4 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Shruti Nemane 4 years, 11 months ago

Let the height be h. Volume of the cylinder =3080cm Radius =7cm π=722 Volume of cylinder =3080 πr2h=3080 ⇒722×7×7×h=3080 ⇒154×h=3080 ⇒h=1543080 ⇒h=20cm Curved surface area of the cylinder =2πrh =2×722×7×20 =2×22×20 =880cm2.

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CBSE > Class 08 > Mathematics