1.

Find the volume and total surface area of a cylinder whose ra-dius of the base is 21 cm ad height is 50 cm.​

Answer»

Step-by-step EXPLANATION:

  • Here, Radius = 21 cm
  • Height = 50 cm
  • So, Volume of CYLINDER = πr^2h = 22/7*21*21*50 = 22*3*21*50 = 69300 cm^3
  • Now, Total surface area of cylinder = 2πr(r+h) = 2*22/7*21(21+50) = 44*3*71 = 9372 cm^2


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