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  1. A right circular cylinder of height 16 cm is covered by a rectangular tin foil of size 16 cm × 22 cm. The volume of the cylinder is
    1. 352 cm³
    2. 308 cm³
    3. 616 cm³
    4. 176 cm³
Correct Option: C

Curved surface area of cylinder = Area of rectangular tin foil
⇒ 2πrh = 16 × 22

= 2 ×
22
× r × 16 = 16 × 22
7

⇒ r =
7
cm
2

∴ Volume of the cylinder = πr&suph;
=
22
×
7
×
7
× 16 = 616 cm³
722



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