Question

volume of a right circular cylinder is 3080cm3 and radius of its base is 7 cm . find the curved surface area​

Answer 1

Step-by-step explanation:

Let height be h, then

Volume = 3080 cm ; Radius = 7 cm ; Let π = 22/7

πr²h = 3080

22/7 × 7 × 7 × h = 3080

h = 3080/22 × 7

h = 3080/154

h = 20 cm

CSA of Right Circular Cylinder = 2πrh

= 2 × 22/7 × 7 × 20

= 44 × 20

= 880 cm²