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

2 thoughts on “find curved surface area of cylinder if r= 7 cm and h= 21 cm​”

1. Answer:

   A≈1231.5cm²

   hope it’s helpful

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2. Answer:

   924cm²

   Step-by-step explanation:

   Curved surface area of cylinder = 2πrh

   Then,

   2πrh = 2 × 22 × 7 × 21

   7

   = 2 × 22 × 21

   = 924cm²

   Reply