Question

find curved surface area of cylinder if r= 7 cm and h= 21 cm​

Answer 1

Answer:

A≈1231.5cm²

hope it's helpful

Answer 2

Answer:

924cm²

Step-by-step explanation:

Curved surface area of cylinder = 2πrh

Then,

2πrh = 2 × 22 × 7 × 21

7

= 2 × 22 × 21

= 924cm²