Question

a rectangular sheet of paper 42 CM X 16 cm is rolled along its length and a cylinder is formed find the volume of the cylinder​

Answer 1

Answer:

Since a rectangle is rolled along length then circumference of circle is equal to length of rectangle and breadth equals to height.

=) 2*pi*r = 42cm

=) 2*22/7 * r = 42cm

=) r = 42*7 / 2*22

=) r = 147/22 cm

Since Volume of cylinder = pi* r^2*h

= 22/7 * 147/22 * 147/22 * 16 cm^3

= 2245.09 cm^3.

Hope this helps you.

Answer 2

Answer:

The volume of the cylinder is 8444.6 cu.cm.

Step-by-step explanation:

$V=π( \frac{d}{2} )^{2}h \\ V = \pi( \frac{16}{2} ) ^{2} 42 \\ V=π \: 8444.6$

The volume of the cylinder is 8444.6 cu.cm.