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anonymous

  • 5 years ago

How do you find the area to a quadrilateral when it is not drawn to scale?

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  1. anonymous
    • 5 years ago
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    use given information, such as angles

  2. Mertsj
    • 5 years ago
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    Could we see a picture?

  3. anonymous
    • 5 years ago
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    Given the dimensions, use the formula: A = bh

  4. anonymous
    • 5 years ago
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    |dw:1326933862189:dw|

  5. anonymous
    • 5 years ago
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    The bottom number is a 6

  6. Mertsj
    • 5 years ago
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    Well, you have 4 right triangles and you are given the base and height of each triangle. So use A = 1/2 bh four times and add them together

  7. Mertsj
    • 5 years ago
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    |dw:1326934305163:dw|

  8. anonymous
    • 5 years ago
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    I got an answer of 63. Is that correct

  9. anonymous
    • 5 years ago
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    I forgot to divide by 2

  10. anonymous
    • 5 years ago
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    So if I divide by 2, I get 31.5

  11. Mertsj
    • 5 years ago
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    That's what I got.

  12. anonymous
    • 5 years ago
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    Thanks Mertsj and everyone else.

  13. Mertsj
    • 5 years ago
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    yw

  14. anonymous
    • 5 years ago
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    The midpoint of line QR is M (-2,-6). One endpoint is R (4,-5). Find the coordinates of the other endpoint.

  15. Mertsj
    • 5 years ago
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    From 4 to -2 is left 6. go left 6 more to get to the other end. That would be -8 From -5 to -6 is down 1. Go down one more to get to the other end. That would be -7 So (-8,-7) Now graph it to see if it makes sense.

  16. Mertsj
    • 5 years ago
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    |dw:1326934761999:dw|

  17. anonymous
    • 5 years ago
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    Yes, we got the same thing. This is a rise run problem. Thank you again

  18. Mertsj
    • 5 years ago
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    yw

  19. anonymous
    • 5 years ago
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    |dw:1326934938444:dw|

  20. anonymous
    • 5 years ago
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    In the diagram, PQRS is a rhombus. What are the values of x and y?

  21. Mertsj
    • 5 years ago
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    What is this thing?

  22. Mertsj
    • 5 years ago
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    so all sides are equal. So write that 2x=x+5 and solve it.

  23. anonymous
    • 5 years ago
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    2x = x + 5 2x -x = 5 x = 5

  24. Mertsj
    • 5 years ago
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    yep

  25. anonymous
    • 5 years ago
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    Is that all? It feels like I need to do more

  26. anonymous
    • 5 years ago
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    How do I find y?

  27. Mertsj
    • 5 years ago
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    The diagonals of a rhombus are perpendicular and so now that you know one of the sides, you can use the pythagorean theorem

  28. Mertsj
    • 5 years ago
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    |dw:1326935721082:dw|

  29. anonymous
    • 5 years ago
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    So the answer is 6?

  30. Mertsj
    • 5 years ago
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    yes

  31. anonymous
    • 5 years ago
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    Thanks again. That's all for tonight. Again I thank you. Am I able to come on this site every night?

  32. Mertsj
    • 5 years ago
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    yw

  33. Mertsj
    • 5 years ago
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    yes

  34. Mertsj
    • 5 years ago
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    you can come whenever you want

  35. anonymous
    • 5 years ago
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    So the answer is 6?

  36. Mertsj
    • 5 years ago
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    yes y = 6

  37. Mertsj
    • 5 years ago
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    It's a 6-8-10 right triangle. A multiple of the famous 3-4-5- pythagorean triple.

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