1. Objective: Students will find the area of parallelograms (10-1).

2. Vocabulary Base – any one of the sides of a parallelogram Height – the shortest distance from the base to the opposite side. Area of a parallelogram – A = bh

3. Steps: Read directions and copy problem. Use the following formula A= bh Plug in your #’s. Multiply.

4. Examples Find the area of each parallelogram to the nearest tenth. 8 5

5. Examples Find the area of each parallelogram to the nearest tenth. 8 5 A = bh

6. Examples Find the area of each parallelogram to the nearest tenth. 8 5 A = bh A = 5 x 8

7. Examples Find the area of each parallelogram to the nearest tenth. 8 5 A = bh A = 5 x 8 A = 40 The area is 40 square units.

8. Examples Find the area of each parallelogram to the nearest tenth. 16.2m 3.7m

9. Examples Find the area of each parallelogram to the nearest tenth. 16.2m 3.7m A = bh

10. Examples Find the area of each parallelogram to the nearest tenth. 16.2m 3.7m A = bh A = 3.7 x 16.2

11. Examples Find the area of each parallelogram to the nearest tenth. 16.2m 3.7m A = bh A = 3.7 x 16.2 A = 59.94 The area is 59.9 square meters.

12. Examples A company in Dallas, Texas makes ceramic tile that is used to cover floors or walls. Find the area of a ceramic tile that needs to be glazed if it is shaped like a parallelogram with the height of 4 ½ inches and a base of 6 ¾ inches. Use the formula for the area of a parallelogram to find the area of the top of the tile.

13. A company is Dallas, Texas makes ceramic tile that is used to cover floors or walls. Find the area of a ceramic tile that needs to be glazed if it is shaped like a parallelogram with the height of 4 ½ inches and a base of 6 ¾ inches. Use the formula for the area of a parallelogram to find the area of the top of the tile. A = bh

14. A company is Dallas, Texas makes ceramic tile that is used to cover floors or walls. Find the area of a ceramic tile that needs to be glazed if it is shaped like a parallelogram with the height of 4 ½ inches and a base of 6 ¾ inches. Use the formula for the area of a parallelogram to find the area of the top of the tile. A = bh A = 6 ¾ x 4 ½ replace b with 6 ¾ and h with 4 ½

15. A company is Dallas, Texas makes ceramic tile that is used to cover floors or walls. Find the area of a ceramic tile that needs to be glazed if it is shaped like a parallelogram with the height of 4 ½ inches and a base of 6 ¾ inches. Use the formula for the area of a parallelogram to find the area of the top of the tile. A = bh A = 6 ¾ x 4 ½ replace b with 6 ¾ and h with 4 ½ A = 27/4 x 9/2 6 ¾ = 27/4 and 4 ½ = 9/2

16. A company is Dallas, Texas makes ceramic tile that is used to cover floors or walls. Find the area of a ceramic tile that needs to be glazed if it is shaped like a parallelogram with the height of 4 ½ inches and a base of 6 ¾ inches. Use the formula for the area of a parallelogram to find the area of the top of the tile. A = bh A = 6 ¾ x 4 ½ replace b with 6 ¾ and h with 4 ½ A = 27/4 x 9/2 6 ¾ = 27/4 and 4 ½ = 9/2 A = 243/8 or 30 3/8 The area of the tile is 30 3/8 square inches.

17. Guided Practice Find the area of each parallelogram to the nearest tenth. 6 4.4m 3.1m 8

18. Guided Practice Find the area of each parallelogram to the nearest tenth. A = bh A = 6 x 6 A = 3.1 x 4.4 A = 48 square units A = 13.6 m² 6 8 4.4m 3.1m