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aNY Group Title

plzzzz help me just one question A=72 ft2 B=74 ft2 C=86 ft2 D=32 ft2 Find the area of the figure.

  • one year ago
  • one year ago

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  1. aNY Group Title
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    • one year ago
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  2. whpalmer4 Group Title
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    Decompose that into a rectangle and a right triangle by extending the 6 ft line down to the base. Find the area of both of those figures and add them.

    • one year ago
  3. aNY Group Title
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    HMM

    • one year ago
  4. whpalmer4 Group Title
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    Can you find the base and the height of that triangle? The area will be 1/2 * base * height.

    • one year ago
  5. aNY Group Title
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    still don'y get it.

    • one year ago
  6. aNY Group Title
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    you there

    • one year ago
  7. aNY Group Title
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    anyone that can help

    • one year ago
  8. zepdrix Group Title
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    |dw:1359845754154:dw|Understand how we're starting this? Breaking it up into 2 easier shapes :)

    • one year ago
  9. aNY Group Title
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    yes

    • one year ago
  10. zepdrix Group Title
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    |dw:1359845881864:dw|

    • one year ago
  11. zepdrix Group Title
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    |dw:1359845947895:dw|

    • one year ago
  12. zepdrix Group Title
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    See how the dimensions of the triangle come about? :)

    • one year ago
  13. aNY Group Title
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    yaa

    • one year ago
  14. zepdrix Group Title
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    |dw:1359846112405:dw|So we want to find the area of these two objects separately. Then we'll add those area's together to get the `total area` of the figure.

    • one year ago
  15. aNY Group Title
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    ok so i got C

    • one year ago
  16. zepdrix Group Title
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    Hmm did you forget the formula for area of a triangle maybe? :o

    • one year ago
  17. zepdrix Group Title
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    cuz C is too big :c

    • one year ago
  18. aNY Group Title
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    idk what the answer is then

    • one year ago
  19. aNY Group Title
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    lol :)

    • one year ago
  20. zepdrix Group Title
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    well it feels like you're just guessing :) lol

    • one year ago
  21. aNY Group Title
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    i multiplide 10 and 7 i got 70 then i multiplide 4 and 2 then i got 16 then i add them together which i got 86

    • one year ago
  22. zepdrix Group Title
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    The 70 looks good. \(4 \times 2 \ne 16\) , might wanna visit Mr Calculator for that one! :O And then remember, The area of a triangle we take `half` of the base times height.

    • one year ago
  23. aNY Group Title
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    woops i ment 8

    • one year ago
  24. zepdrix Group Title
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    Cool c: Just remember for a triangle,\[\large A=\frac{1}{2}b\cdot h\]

    • one year ago
  25. zepdrix Group Title
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    So we only want half of that 8 c:

    • one year ago
  26. aNY Group Title
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    hmm

    • one year ago
  27. zepdrix Group Title
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    |dw:1359846808816:dw|If we had a square like this, the area would be 8, because 4 x 2 = 8.

    • one year ago
  28. zepdrix Group Title
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    |dw:1359846855993:dw|But we have a triangle, which is half of that area.

    • one year ago
  29. zepdrix Group Title
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    still confused? <:o

    • one year ago
  30. aNY Group Title
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    yes

    • one year ago
  31. zepdrix Group Title
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    aw :c

    • one year ago
  32. aNY Group Title
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    ya sorry i'm not that smart

    • one year ago
  33. aNY Group Title
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    was 74

    • one year ago
  34. zepdrix Group Title
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    im sure that's not true c: math isn't for everyone!

    • one year ago
  35. zepdrix Group Title
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    ya 74 D:

    • one year ago
  36. aNY Group Title
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    so is 74 right

    • one year ago
  37. aNY Group Title
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    @zepdrix

    • one year ago
  38. zepdrix Group Title
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    yes c:

    • one year ago
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