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Warm Up PowerPoint Presentation

Warm Up

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Warm Up

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  1. Warm Up • Suppose you have a roll of 33¢ stamps and a roll of 15¢ stamps. You need to mail a package that will cost $1.77. What combination of stamps can you use to get exactly $1.77?

  2. Solution • Four 33¢ stamps and three 15¢ stamps equals $1.77 in postage.

  3. Activity Time

  4. Area of Parallelograms Lesson 11-4

  5. Area of Parallelograms • In the Activity we found that the area of a parallelogram is similar to the area of a rectangle. • The area of a rectangle is l x w

  6. Find the area of a parallelogram A = bh h b Remember the units when finding area of any figure are always SQUARED!! Parallelogram

  7. Find the area of the figure round to the nearest tenth if necessary. • A = bh • A = 15cm x 12cm • A = 180 cm ² 12cm 15cm

  8. Find the area of the figure round to the nearest tenth if necessary. 1.5m 0.75m • A = bh • A = 1.5m x 0.75m • A = 1.1 m ²

  9. Find the area of the figure round to the nearest tenth if necessary. 2yd 3 ½ yd • A = bh • A = 3 ½ yd x 2 yd • A = 7 yd²

  10. Find the area of the figure round to the nearest tenth if necessary. 7.2cm 7.9cm • A = bh • A = 7.2cm x 7.9cm • A = 56.9 cm ²

  11. Don’t Forget • Homework: Lesson 11-4 # 1-14 all • Quiz: Next Tuesday on Lessons 11-3 Pythagorean Theorem and 11-4 Area of Parallelograms