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11 1 Areas Of Rectangles
11 1 Areas Of Rectangles
11 1 Areas Of Rectangles
11 1 Areas Of Rectangles
11 1 Areas Of Rectangles
11 1 Areas Of Rectangles
11 1 Areas Of Rectangles
11 1 Areas Of Rectangles
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11 1 Areas Of Rectangles

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Transcript

  • 1. 11-1 Areas of Rectangles
  • 2. Area
    • Length – Distance
    • Area – Surface
    • WHY should we care about area???
      • Painting, construction, architecture…
  • 3. Area of a square
    • The square of the length of a side
    • A = s 2
    s
  • 4. Area congruence
    • If two figures are congruent their areas are the same
  • 5. Area of a rectangle
    • Base times height
    • A =bh
    12 3
  • 6. Area addition postulate
    • The area of a region is the sum of the areas of its non-overlapping parts
    4 5 5 2 Area = ?
  • 7. Proof for area of a rectangle b 2 b b b h h h h h 2 b A A
  • 8. SPICSA
    • Page 426 1-16 all
    • Page 426 18-22 even

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