A rectangular piece of paper becomes 11cm×4cm is folded without overlapping to make a cylinder of height 4cm. Find volume of cylinder

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Solution

here, circumference of the cylinder will be 11cm

then the radius would be because

**2 * pie * r =11

pie * r =11/2

r = 11/2 / 22/7 =11/2 7/22 pie=22/7

=77/44 =7/4 cm

now lets find the volume

pie r² * h

22/7 * 7/4 7/4 4

=77/2

=38.5 cm³**

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