Measuring Perimeter of Shapes

Name: _______________________________
Date: _______________________________

Remember: Perimeter is the total distance around a shape. Add all the side lengths together.

Part A: Rectangles and Squares

1.
12 cm 8 cm
Perimeter = ________________ cm
2.
15 m 15 m
Perimeter = ________________ m
3.
25 mm 9 mm
Perimeter = ________________ mm

Part B: Triangles

4.
14 cm 13 cm 13 cm
Perimeter = ________________ cm
5. Triangle with sides: 7 m, 9 m, 11 m Perimeter = ________________ m
6. Triangle with sides: 18 cm, 24 cm, 30 cm Perimeter = ________________ cm

Part C: Other Polygons

7. Pentagon with all sides 6 cm Perimeter = ________________ cm
8. Hexagon with sides: 5 m, 5 m, 5 m, 5 m, 5 m, 5 m Perimeter = ________________ m

Part D: Composite Shapes

9.
10 cm 4 cm 3 cm 6 cm 4 cm 7 cm
Perimeter = ________________ cm
10. L-shaped figure with outer edges: 8 m, 5 m, 3 m, 2 m, 5 m, 7 m Perimeter = ________________ m

Challenge Question

11. A rectangular garden has a perimeter of 48 metres. If the length is 14 metres, what is the width?

Width = ________________ metres