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anonymous

  • one year ago

help

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    what is \(6\times 2.5\)?

  3. anonymous
    • one year ago
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    15

  4. anonymous
    • one year ago
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    ok and what is \(8\times 2.5\)?

  5. anonymous
    • one year ago
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    20

  6. anonymous
    • one year ago
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    |dw:1438178109944:dw|

  7. anonymous
    • one year ago
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    now find the perimeter

  8. anonymous
    • one year ago
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    how

  9. anonymous
    • one year ago
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    @satellite73

  10. anonymous
    • one year ago
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    see we were using a scale of 2.5 so 1cm = 2.5 so 6cm = 6 *2.5

  11. anonymous
    • one year ago
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    am i right @satellite73 ? :D

  12. anonymous
    • one year ago
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    15

  13. anonymous
    • one year ago
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    yes so now find the area

  14. anonymous
    • one year ago
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    how

  15. anonymous
    • one year ago
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    area = length * breadth

  16. anonymous
    • one year ago
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    15*20=300

  17. anonymous
    • one year ago
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    yes

  18. anonymous
    • one year ago
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    perimeter = 2( l+b)

  19. anonymous
    • one year ago
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    what?

  20. anonymous
    • one year ago
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    yes 2 * ( length + breadth)

  21. anonymous
    • one year ago
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    add, not multiply

  22. anonymous
    • one year ago
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    \[15\times 20\]is the area, not the perimeter

  23. anonymous
    • one year ago
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    thats the formula or u cand add the four sides

  24. anonymous
    • one year ago
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    yes thats what i told him

  25. anonymous
    • one year ago
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    but which one is it? Perimeter = 38 cm, area = 300 cm2 Perimeter = 70 cm, area = 300 cm2

  26. anonymous
    • one year ago
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    @satellite73

  27. anonymous
    • one year ago
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    @satellite73

  28. anonymous
    • one year ago
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    15+15+20+20

  29. anonymous
    • one year ago
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    D!

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spraguer (Moderator)
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