If a rectangular sheet is folded along its length to cover the curved surface of the cylinder with radius R and height H, then find the length and breadth of the rectangular sheet. [2 MARKS]

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Solution

Concept: 1 Mark
Application: 0.5 Mark each

Length of the rectangular sheet = Circumference of the cross-section of the cylinder
$= 2 π R$

Breadth of the rectangular sheet = Height of the cylinder
$= H$

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If a rectangular sheet is folded along its length to cover the curved surface of the cylinder with radius R and height H, then find the length and breadth of the rectangular sheet. [2 MARKS]

Concept: 1 Mark Application: 0.5 Mark each Length of the rectangular sheet = Circumference of the cross-section of the cylinder =2πR Breadth of the rectangular sheet = Height of the cylinder =H

Concept: 1 Mark
Application: 0.5 Mark each

Length of the rectangular sheet = Circumference of the cross-section of the cylinder
$= 2 π R$

Breadth of the rectangular sheet = Height of the cylinder
$= H$