Question

The surface area of hollow cylinder with radius 'r' and height 'h' is
measured by *
​

Answer 1

Answer:

curved surface area, (CSA) of a cylinder = 2πrh

total surface area (TSA) of a cylinder = 2πr(r+h)

Step-by-step explanation:

• a cylinder is a three dimentional shape that has a curved surface and two circular surfaces

for a cylinder of radius "r" and height "h":

• the curved surface area (CSA) = perimeter of base of the cylinder × height of the cylinder

[base of the cylinder has a circular shape]

therefore, curved surface area = 2πr × h

CSA of a cylinder = 2πrh

• total surface area of a cylinder (TSA) = CSA of cylinder + area of two circular surfaces
• TSA = 2πrh + 2πr²

total surface area of a cylinder = 2πr(r+h)