Perimeter of Regular and Irregular Shapes

Name: _______________________________
Date: _______________________________

Remember: Perimeter is the distance around the outside of a shape. Add all the side lengths together!

Part A: Rectangles and Squares

1.
8 cm
5 cm
Perimeter = __________
2.
7 cm
Perimeter = __________
3. A rectangle has a length of 12 cm and a width of 4 cm.
Perimeter = __________
4. A square has sides of 9 cm.
Perimeter = __________

Part B: Irregular Shapes

5. Triangle
10 cm
8 cm
8 cm
Perimeter = __________
6. Pentagon
(All sides equal)
6 cm
Perimeter = __________

Part C: Word Problems

7. A rectangular garden has a length of 15 metres and a width of 8 metres. What is the perimeter of the garden?

Perimeter = __________
8. An irregular shape has sides measuring 5 cm, 7 cm, 3 cm, 6 cm, and 4 cm. What is the perimeter?

Perimeter = __________
9. A hexagon has 6 equal sides. Each side is 4 cm long. Calculate the perimeter.

Perimeter = __________