The document provides 3 examples of perimeter calculations: 1) Finding the perimeter of a triangle with sides of 5, 9, and 11 cm, which equals 25 cm. 2) Calculating the perimeter of a rectangle and two similar squares shown in a diagram, which equals 34 cm. 3) Determining the cost of barbed wire to fence a 120m x 120m square garden, which is RM5280 using 480m of fencing at RM11 per meter.

1. Let’s see some of the examples…..

2. 1. Find the perimeter of a triangle with sides measuring 5 centimeters, 9 centimeters and 11 centimeters.

3. 1. Find the perimeter of a triangle with sides measuring 5 centimeters, 9 centimeters and 11 centimeters. The solution is:

4. 1. Find the perimeter of a triangle with sides measuring 5 centimeters, 9 centimeters and 11 centimeters. P = 5 cm + 9 cm + 11 cm = 25 cm The solution is:

5. 2. The diagram shows a rectangle and two similar squares.

6. 2. The diagram shows a rectangle and two similar squares. Solution:

7. 2. The diagram shows a rectangle and two similar squares. Calculate the perimeter, in cm of the whole diagram. Solution: P = (8 x 3) + (2 x 5) = 34cm 3cm 5cm

8. 3. Steven would like to fenced a square garden which measures 120m x 120m with barbed wire. The cost of the barbed wire is RM11 per meter. Calculate the cost of the barbed wire used to fence the field. 120m

9. 3. Steven would like to fenced a square garden which measures 120m x 120m with barbed wire. The cost of the barbed wire is RM11 per meter. Calculate the cost of the barbed wire used to fence the field. 120m Solution:

10. 120m Solution: 3. Steven would like to fenced a square garden which measures 120m x 120m with barbed wire. The cost of the barbed wire is RM11 per meter. Calculate the cost of the barbed wire used to fence the field. P = 4 x 120m = 480m

11. 3. Steven would like to fenced a square garden which measures 120m x 120m with barbed wire. The cost of the barbed wire is RM11 per meter. Calculate the cost of the barbed wire used to fence the field. 120m Solution: P = 4 x 120m = 480m Cost of barbed wire = RM11 x 480m = RM 5280