Question

if r=21cm and h=7cm then c.s.a of a cylinder is​

Answer 1

Answer:

924cm²

Step-by-step explanation:

r=21cm

h=7cm

Csa of cylinder =2πrh

=2×22/7×21×7

=924cm²

Answer 2

Answer:

CSA of cylinder=2πrh

Step-by-step explanation:

therefore, CSA=2×22 ×21×7

7

CSA=2×22×21

CSA=44×21

CSA= 924