Question

. Sumit had to make a cylindrical lamp stand. He wanted to use chart paper to make the

curved surface of the cylinder. What should be the area of chart paper required by him, if he

wanted to make of length 15 cm and 2.1 cm radius?​

Answer 1

Answer:198

Step-by-step explanation:

CSA of cylinder

=2πrh

=2*22/7*2.1*15

=198

Answer 2

Answer & Step-by-Step Explanation:

The Lampstand that Sumit wanted to make is in a cylindrical shape

∴ Area of chart paper required = CSA of cylinder

                                                    = 2πrh

=             $2*\frac{22}{7}*15*2.1 = 197.82cm$²