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Surface Area and Volume of Right Circular Cylinder | Surface Area and Volume of Right Circular Cylinder Exercise 22.2

Question 9

A rectangular strip 25 cm× 7 cm is rotated about the longer side. Find the volume of the solid, thus generated.

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Given,

Dimensions of rectangular strip = 25 cm × 7 cm

When it rotated about longer side it becomes, Radius of base = 7 cm

Height of cylinder = 25 cm

Volume of cylinder = πr2h

= 22/7 × 7 × 7 × 25

= 3850 cm3

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Question 9

A rectangular strip 25 cm× 7 cm is rotated about the longer side. Find the volume of the solid, thus generated.

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

Given,

Dimensions of rectangular strip = 25 cm × 7 cm

When it rotated about longer side it becomes, Radius of base = 7 cm

Height of cylinder = 25 cm

Volume of cylinder = πr2h

= 22/7 × 7 × 7 × 25

= 3850 cm3

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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