Question

The diameter of the cylinder is 28 cm and its Height 40 cm. Find the curved surface area, total area and volume of the cylinder?​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Step-by-step explanation:

It is given that Diameter of a cylinder = 28cm

We know that radius = diameter/2 = 28/2 = 14cm Height of a cylinder = 40cm

We know that Curved surface area = 2 πrh

By substituting the values Curved surface area = 2 × (22/7) × 14 × 40

So we get Curved surface area = 3520 cm2

We know that Total surface area = 2 πrh + 2 πr2

By substituting the values Total surface area = (2 × (22/7) × 14 × 40) + (2 × (22/7) × 142)

On further calculation Total surface area = 3520 + 1232 = 4752 cm^2

We know that Volume of cylinder = πr2h

By substituting the values Volume of cylinder = (22/7) × 142 × 40

So we get Volume of cylinder = 24640 cm^3

Therefore, the curved surface area, total surface area and the volume of cylinder are 3520 cm^2, 4752 cm^2  24640cm^3

I hope it helps :)