2. Transparency 8 Click the mouse button or press the Space Bar to display the answers.

3. Splash Screen

4. Example 8-2c Objective Find the area of rectangles

5. Example 8-2c Vocabulary Area The number of square units needed to cover a surface

6. Example 8-2c Vocabulary Formula An equation that shows a relationship among certain quantities Area of Rectangle = length  width Formula :A = lw

7. Lesson 8 Contents Example 1Find the Area of a Rectangle Example 2Example 2Find the Area of a Rectangle

8. Example 8-1a Find the area of a rectangle with length 15 feet and width 10 feet. Answer: A = 150 ft 2 1/2 A = L  W A = 15  10 Write formula for area of a rectangle Replace L for length with 15 Replace W for length with 10 Multiply 15  10 Label with ft 2 since it is 2-dimensional

9. Example 8-1b Find the area of a rectangle with length 9 meters and width 13 meters. Draw a rectangle and label dimensions 1/2 Answer: A = 117 meters 2

10. Example 8-2a SPORTS The outdoor Olympic swimming pool in Springfield measures 50 meters long and 25 meters wide. What is the area of the outdoor pool? Draw the pool and label dimensions 2/2 A = L  W A = 50  25 A = 1,250 Answer: A = 1,250 meters 2 Write formula for area of a rectangle Replace L for length with 50 Replace W for length with 25 Multiply 50  25 Label with ft 2 since it is 2-dimensional

11. Example 8-2b GARDENS Bob has a large garden in his backyard. Bob’s garden measures 18 feet long and 12 feet wide. What is the area of Bob’s garden? * 2/2 Answer: A = 216 ft 2

12. End of Lesson 8 Assignment Lesson 1:8Areas of Rectangles4 - 15 All