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Transparency 8

Transparency 8. Click the mouse button or press the Space Bar to display the answers. Splash Screen. Example 8-2c. Objective. Find the area of rectangles. Example 8-2c. Vocabulary. Area. The number of square units needed to cover a surface. Example 8-2c. Vocabulary. Formula.

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Transparency 8

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

  2. Splash Screen

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

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

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

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

  7. Example 8-1a Find the area of a rectangle with length 15 feet and width 10 feet. Write formula for area of a rectangle A = L W A = 15 10 Replace L for length with 15 Replace W for length with 10 Multiply 15  10 Label with ft2 since it is 2-dimensional Answer: A = 150 ft2 1/2

  8. Example 8-1b Find the area of a rectangle with length 9 meters and width 13 meters. Draw a rectangle and label dimensions Answer: A = 117 meters2 1/2

  9. Example 8-2a SPORTSThe 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 Write formula for area of a rectangle A = L W Replace L for length with 50 A = 50 25 Replace W for length with 25 A = 1,250 Multiply 50  25 Label with ft2 since it is 2-dimensional Answer: A = 1,250 meters2 2/2

  10. 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? Answer: A = 216 ft2 2/2

  11. End of Lesson 8 Assignment

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