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10-2 Areas of Trapezoids, Rhombuses and Kites

Learn about the area formulas for trapezoids, rhombuses, and kites with helpful examples. Apply the Pythagorean theorem to find missing side lengths. Complete today's assignment on page 542, questions 1-27.

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10-2 Areas of Trapezoids, Rhombuses and Kites

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  1. 10-2 Areas of Trapezoids, Rhombuses and Kites

  2. Theorem 10-4 Area of a Trapezoid b1 b2 Two bases this time h b2 b1 Flip and what do we get? A parallelogram with a base of b1 + b2 and a height of h.

  3. Theorem 10-5 Area of a Rhombus or Kite d2 d1 d2 d1 Area = area of 1 triangle times 4

  4. Theorem 10-5 Area of a Rhombus or Kite d2 d1 d2 d1

  5. Theorem 10-5 Area of a Rhombus or Kite d2 d1 d2 d1

  6. What if? Find the area. a2 + b2 = c2 42 + b2 = 52 3 cm 16 + b2 = 25 b2 = 9 5 cm 4 cm b = 3 A = ½(b1 + b2)h A = ½(3 + 9)4 6 cm A = 24 cm2

  7. Today’s Assignment P. 542 #1-27

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