Calculating Perimeter of Polygons
Instructions: Calculate the perimeter of each polygon by adding the lengths of all sides. Remember: Perimeter = sum of all side lengths. Show your working.
1. Triangle with sides: 7 cm, 9 cm, 11 cm
Working: ___________________________________________
Perimeter = ________________ cm
2. Rectangle with length 12 m and width 8 m
Working: ___________________________________________
Perimeter = ________________ m
3. Square with side length 15 cm
Working: ___________________________________________
Perimeter = ________________ cm
4. Pentagon with all sides equal to 6 m
Working: ___________________________________________
Perimeter = ________________ m
5. Hexagon with sides: 4 cm, 5 cm, 4 cm, 5 cm, 4 cm, 5 cm
Working: ___________________________________________
Perimeter = ________________ cm
6. Quadrilateral with sides: 8 m, 6 m, 10 m, 7 m
Working: ___________________________________________
Perimeter = ________________ m
7. Regular octagon with each side measuring 3.5 cm
Working: ___________________________________________
Perimeter = ________________ cm
8. Triangle with sides: 13.5 m, 12.8 m, 14.2 m
Working: ___________________________________________
Perimeter = ________________ m
🌟 Challenge: A regular heptagon (7 sides) has a perimeter of 91 cm. What is the length of one side?
Working: ___________________________________________
Side length = ________________ cm