1. AREA & PERIMETER Created by Miss Mott

2. AREA

3. What is area? Area is the amount of ____________ that an object takes up. Area is measured in _____________ units. It’s what the inside measures!

4. There are 2 ways to find the area of an object.

5. Way #1: Count the number of squares.

6. Way # 1: Count the total number of squares. 1. What is the area? ______________________

7. Way # 1: Count the total number of squares. 2. What is the area? ______________________

8. Way # 1: Count the total number of squares. 3. What is the area? ______________________

9. Way # 1: Count the total number of squares. 4. What is the area? ______________________

10. Way #2: Multiply the length X width.

11. Way # 2: Length X Width 1. What is the area? ______________________ 4 cm 2 cm

12. Way # 2: Length X Width 2. What is the area? ______________________ 3 cm

13. Way # 2: Length X Width 3. What is the area? ______________________ 8 cm 4 cm

14. Way # 2: Length X Width 4. What is the area? ______________________ 6 cm

15. PERIMETER

16. What is perimeter? Perimeter is the ____________ around an object. It is what the outside measures!

17. There are 2 ways to find the perimeter.

18. Way #1: Count the spaces outside the object.

19. Way # 1: Count the number of spaces outside the object 1. What is the perimeter? __________________

20. Way # 1: Count the number of spaces outside the object 2. What is the perimeter? __________________

21. Way # 1: Count the number of spaces outside the object 3. What is the perimeter? __________________

22. Way # 1: Count the number of spaces outside the object 4. What is the perimeter? __________________

23. Way #2: Add all of the sides together.

24. Way # 2: Add all of the sides 1. What is the perimeter? __________________ 4 cm 2 cm

25. Way # 2: Add all of the sides 2. What is the perimeter? __________________ 3 cm

26. Way # 2: Add all of the sides 3. What is the perimeter? __________________ 8 cm 4 cm

27. Way # 2: Add all of the sides 4. What is the perimeter? __________________ 6 cm

28. Way # 2: Add all of the sides 5. What is the perimeter? __________________ 4 cm

29. Way # 2: Add all of the sides 6. What is the perimeter? __________________ Note: Each line measure 1 cm.

30. AREA & PERIMETER

31. Practice Problem #1 What is the area? ____________________ What is the perimeter? _______________ FORMULAS: AREA – space inside; count the squares inside or use length x width PERIMETER – distance around the outside; add all sides or count spaces outside the object

32. Practice Problem #2 What is the area? ____________________ What is the perimeter? _______________ FORMULAS: AREA – space inside; count the squares inside or use length x width PERIMETER – distance around the outside; add all sides or count spaces outside the object

33. Practice Problem #3 What is the area? ____________________ What is the perimeter? _______________ FORMULAS: AREA – space inside; count the squares inside or use length x width PERIMETER – distance around the outside; add all sides or count spaces outside the object

34. Practice Problem #4 What is the area? ____________________ What is the perimeter? _______________ FORMULAS: AREA – space inside; count the squares inside or use length x width PERIMETER – distance around the outside; add all sides or count spaces outside the object 3 cm 1 cm 3 cm 1 cm

35. Practice Problem #5 What is the area? ____________________ What is the perimeter? _______________ FORMULAS: AREA – space inside; count the squares inside or use length x width PERIMETER – distance around the outside; add all sides or count spaces outside the object 2 cm

36. AREA & PERIMETER