Question

Radius of base of a cylinder is 20 cm and its height is 13 cm find its curved surface area total surface area and volume of cylinder

Answer 1

Answer:

Step-by-step explanation:

r=20, h=13

curved surface area=2πrh = 2×(22/7)×20×13 = 1634.2857

total surface area = curved surface area + 2πr² = 1634.29+ 2×(22/7)×20²

                              = 1634.29 + 2514.29

                              = 4148.57 cm²

volume=2πr²h= 2×(22/7)×20²×13 = 32685.71 cm³