Question

The vol. Of a right circular cylinder is 1100 cm³ and the radius of its base is 5cm. Find the CSA​

Answer 1

Answer: 440 cm²

Step-by-step explanation:

Given that , volume of a right circular cylinder = 1100 cm³ and r = 5cm

ie, π r²h = 1100

ie, 22 × 5 × 5 × h = 1100

      7

ie,  h = 1100  ×  7

             22×5×5

ie, h = 14 cm

Now, CSA of a right circular cylinder = 2πrh

                                                          = 2 × 22 × 5 × 14

                                                                     7

                                                         = 2× 22 × 5 × 2

                                                         = 440 cm²

HOPE THIS HELPS.....