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razor99

  • 4 years ago

help me plzzzz

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  1. razor99
    • 4 years ago
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    |dw:1327404120182:dw|

  2. razor99
    • 4 years ago
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    find the area of the trapezium

  3. razor99
    • 4 years ago
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    i know the formulae but i dont know how to do

  4. razor99
    • 4 years ago
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    here is the formulae

  5. King
    • 4 years ago
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    what do i hav to find?

  6. razor99
    • 4 years ago
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    |dw:1327404394659:dw|

  7. razor99
    • 4 years ago
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    area

  8. razor99
    • 4 years ago
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    plzzzzzzz help me

  9. King
    • 4 years ago
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    area of the whole house is 31cm^2? area of trapezium=16 area of rectangle =15

  10. Diyadiya
    • 4 years ago
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    is that 7 cm?|dw:1327404717507:dw|

  11. razor99
    • 4 years ago
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    yes it 7 cm

  12. razor99
    • 4 years ago
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    this is a trapizium

  13. razor99
    • 4 years ago
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    i dont know how to draw nicely.

  14. King
    • 4 years ago
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    see razor,|dw:1327404780151:dw|

  15. Diyadiya
    • 4 years ago
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    Okay here a=3cm b=5cm h=7-3=4cm Now Area= 1/2(a+b)h= 1/2* 8*4 =16 cm^2

  16. razor99
    • 4 years ago
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    thank Diyadiya

  17. King
    • 4 years ago
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    the whole house is a trapezium.....?

  18. Diyadiya
    • 4 years ago
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    No Its a rectangle + trapezium right ?

  19. razor99
    • 4 years ago
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    yeah

  20. razor99
    • 4 years ago
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    king is correct

  21. King
    • 4 years ago
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    oh!

  22. Diyadiya
    • 4 years ago
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    Question says to find the area of trapezium , not the whole house

  23. razor99
    • 4 years ago
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    yeah but the anserw u gave was wrong

  24. Diyadiya
    • 4 years ago
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    Oh wait then .. letme check again

  25. King
    • 4 years ago
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    the house is the trapezium...

  26. razor99
    • 4 years ago
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    okay the formulae says 1/2(a+b)h

  27. King
    • 4 years ago
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    u need to giv us proper diagram....

  28. razor99
    • 4 years ago
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    but didiya u have multiplied it

  29. King
    • 4 years ago
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    if u hav a question can u post it?

  30. Diyadiya
    • 4 years ago
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    \[\frac{1}{2} \times (5+3) \times 4= \frac{1}{2} \times 8 \times 4 =16\]

  31. Diyadiya
    • 4 years ago
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    What is your final answer ?

  32. razor99
    • 4 years ago
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    but in the back of the book its say the answer is its 31cm^2

  33. Diyadiya
    • 4 years ago
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    Its the area of the whole house thats area of rectangle + area of trapezium

  34. lalaly
    • 4 years ago
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    yeah diya found the area of the trapezium which the top part =16cm^2 then u find the are a of the rectangle at the bottom, = 5*3 =15cm^2 then the area of the whole thing together is 16+15=31cm^2

  35. mark_o.
    • 4 years ago
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    total At=area of rectangle + area of trapezoid At= 3x5 + (1/2)(3+5)4 At= 15 + 32/2 At= 15 + 16 =31 square meter ans....

  36. razor99
    • 4 years ago
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    ohh i get it know

  37. razor99
    • 4 years ago
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    thanx for the help everyone.

  38. King
    • 4 years ago
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    i gave u answr 31!

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