Question

The total surface area of a cylinder is 484 cm2.
Find the volume of
the cylinder its radius is 7 cm.
​

Answer 1

Answer:

= 616 cmsq.

Step-by-step explanation:

Area= 484 cm sq.

Radius= 7 cm

Area of cylinder= 2πr  (r+h)

    484               = 2× 22/7× 7 (7+ h)

   484                = 2× 22 (7+h)

   484               = 44 (7+ h)

   484/44          = 7+h

       11                = 7+ h

       11- 7           = h

       4               = h                     ( finded the height )

Now, Volume

Volume of cylinder= πr sq. h

                               = 22/7 7× 7 × 4

                               = 22× 7 × 4

                                = 22×28

                                 = 616 cm sq.