Question

The radius of a cylindrical tin is 7 cm and its height is 10 cm. A rectangular label is to be pasted along its curved surface. Find the area of the label.

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Answer 1

Here, r = 7 cm

h = 10 cm

C. S. A = 2πrh

= 2 × 22/7 × 7× 10 = 440 cm^2

The maximum area is 440 cm^2

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Answer 2

Given,

r = 7 cm

h = 10 cm

C. S. A = 2πrh

= 2 × 22/7 × 7× 10 = 440 cm²