In real life there are many examples of cylinders like

All cylinders have a base, a top and a curved face.

**Learn how to calculate the surface area of a cylinder in this video.**

** **

From the images and video viewed earlier:

Surface Area of a cylinder is the Area of top and bottom plus Area of the curved side.

Therefore,

Surface Area = 2(Area of circular top) + (circumference of top) by height of cylinder

#### Surface Area = 2(Area of a circle) + (Area of a rectangle)

#### Questions

Attempt to answer the questions before studying the solution given.

**Question 1.**

A cylindrical can 12cm high has a radius of 8.8cm. What is the surface area of the curved part?( use pie as 3.14)

#### Solution to Question 1

**Question 2. **

An open cylinder has a diameter of 12.8cm and a height of 20cm. Find the surface area of the cylinder.

(Use pie as 3.14)

#### Solution to **Question **2

#### Question 3

Kajairo build a cylindrical tank at his home measuring 6m high and 2.6m in diameter. Find the surface area of the tank.

#### Solution** to Question 3**

For more exercises, look at your text book.

- Area_of_a_Cylinder_640_24f by elimu used under CC_BY
- cylinder by elimu used under CC_BY
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- surface_area_cylinder by elimu used under CC_BY
- surface_area by elimu used under CC_BY-NC
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- sa_example_2 by elimu used under CC_BY
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