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Splash Screen. Over 6.4. WXYZ is a rectangle. If ZX = 6 x – 4 and WY = 4 x + 14, find ZX. A. 9 B. 36 C. 50 D. 54. 5-Minute Check 1. Over 6.4. WXYZ is a rectangle. If WY = 26 and WR = 3 y + 4, find y. A. 2 B. 3 C. 4 D. 5. 5-Minute Check 2. Over 6.4.

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  1. Splash Screen

  2. Over 6.4 WXYZ is a rectangle. If ZX = 6x – 4 and WY = 4x + 14, find ZX. A. 9 B. 36 C. 50 D. 54 5-Minute Check 1

  3. Over 6.4 WXYZ is a rectangle. If WY = 26and WR = 3y + 4, find y. A. 2 B. 3 C. 4 D. 5 5-Minute Check 2

  4. Over 6.4 WXYZ is a rectangle. If mWXY = 6a2 – 6, find a. A.± 6 B.± 4 C.± 3 D.± 2 5-Minute Check 3

  5. Over 6.4 RSTU is a rectangle. Find mVRS. A. 38 B. 42 C. 52 D. 54 5-Minute Check 4

  6. Over 6.4 RSTU is a rectangle. Find mRVU. A. 142 B. 104 C. 76 D. 52 5-Minute Check 5

  7. Given ABCD is a rectangle, what is the length of BC? ___ Over 6.4 A. 3 units B. 6 units C. 7 units D. 10 units 5-Minute Check 6

  8. Content Standards G.GPE.7 Use coordinates to compute perimeters of polygons and areas of triangles and rectangles, e.g., using the distance formula. Mathematical Practices 1 Make sense of problems and persevere in solving them. 7 Look for and make use of structure. CCSS

  9. You found areas of rectangles and squares. • Find perimeters and areas of parallelograms. • Find perimeters and areas of triangles. Then/Now

  10. parallelogram: • - base: any side can be called the base • - height: the perpendicular distance between the two parallel bases Vocabulary

  11. triangle: • - base: any side can be called the base • - height: the length of an altitude drawn to a given base Vocabulary

  12. Formula: Area of a Rectangle b h Vocabulary

  13. Formula: Area of a Parallelogram Vocabulary

  14. Formula: Area of a Triangle Vocabulary

  15. Postulate 11.1: Area Addition Postulate The area of a region is the sum of the areas of its nonoverlapping parts. 1 2 Vocabulary

  16. Postulate 11.2: Area Congruence Postulate If two figures are congruent, then they have the same area. Vocabulary

  17. Find the perimeter and area of Perimeter and Area of a Parallelogram Example 1

  18. A. Find the perimeter and area of Perimeter and Area of a Parallelogram Example 1

  19. Perimeter and Area of a Triangle SANDBOXYou need to buy enough boards to make the frame of the triangular sandbox shown and enough sand to fill it. If one board is 3 feet long and one bag of sand fills 9 square feet of the sandbox, how many boards and bags do you need to buy? Example 3

  20. Use Area to Find Missing Measures ALGEBRA The height of a triangle is 7 inches more than its base. The area of the triangle is 60 square inches. Find the base and height. Example 4

  21. Use Area to Find Missing Measures ALGEBRAThe height of a triangle is 12 inches more than its base. The area of the triangle is 560 square inches. Find the base and the height. Example 4

  22. End of the Lesson

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