1-6 Two-Dimensional Figures

Name ____________________

Consider the figures below. State whether it is convex or concave, regular or irregular, and what type of polygon it is from the number of sides. Example of an answer could be convex, irregular pentagon.

1. ___________________________ 2. ___________________________

3. ___________________________ 4. ___________________________

5. ___________________________ 6. ___________________________

_________ 7. What is the perimeter of a square with a side length of 10 cm?

_________ 8. What is the area of a square with a side length of 5 cm?

_________ 9. What is the area of a circle with a radius of 10 cm?

_________ 10. What is the area of a circle with a diameter of 8 cm?

_________ 11. What is the circumference of a circle with a diameter of 8 cm?

_________ 12. What is the circumference of a circle with a radius of 5 cm?

_________ 13. If the perimeter of a triangle is 40 cm with sides of length

3n, 2n + 12, and 5n – 2, what is the value of n?

Find the perimeter and area of each figure?

14. Figure 7: Perimeter = _____________ Area = _____________

15. Figure 8: Perimeter = _____________ Area = _____________

16. Figure 9: Perimeter = _____________ Area = _____________

17. Figure 10: Perimeter = _____________ Area = _____________

18. Figure 11: Perimeter = _____________ Area = _____________

19. Figure 12: Perimeter = _____________ Area = _____________

____________ 20. What is the perimeter of a triangle with the following vertices:

(2, 5) (7, 5) (7, 17)

____________ 21. What is the perimeter of a triangle with the following vertices:

(-1, -1) (2, -1) (2, 3)

____________ 22. What is the perimeter of a triangle with the following vertices:

(2, 4) (6, 9) (9, 5) (Round your answer to the nearest tenth.)