Question

Find the curved roller surface area and total area and total surface area of cylinder with diameter 14 cm and height 9m.​

Answer 1

Answer:

CSA = 396 AND TSA = 704

Step-by-step explanation:

C.S.A OF CYLINDER =2* 22/7 *7*9

                                  = 2*22*9

                                  = 396

T.S.A = 2 *22/7*7(9+7)

          = 2*22*16

           = 704

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Answer 2

Answer:

CSA of a cylinder = 2πrh

so

2*22/7*7*9=2*22*9

2*22*9=396cm2

TSA of a cylinder is 2πr(h+r)

so

2*22/7*7(9+7)

44(16)

704cm2