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anonymous

  • one year ago

Lisa has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area of the polygon. Be sure to show all your work and explain your answer.

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    please help @shinebrightlikeadimon @johnweldon1993

  3. anonymous
    • one year ago
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    ok so this polygon is an irregular polygon there is no equation to find it

  4. anonymous
    • one year ago
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    so first you need to cut the polygon into pieces that can be calculated

  5. Loser66
    • one year ago
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    Suggestion: find the biggest one, then subtract the irrelevant parts.

  6. anonymous
    • one year ago
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    |dw:1433606810579:dw|

  7. Loser66
    • one year ago
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    @MLG360GABEN What is the formula to find area of a rectangular?

  8. anonymous
    • one year ago
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    and what formula to find triangles?

  9. anonymous
    • one year ago
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    umm A=bh/2 ?

  10. Loser66
    • one year ago
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    to find area of a square also. You need them all to solve this problem. Please, state them out

  11. anonymous
    • one year ago
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    @MLG360GABEN what is the formula for a square?

  12. anonymous
    • one year ago
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    A= a divided by 2 ?

  13. anonymous
    • one year ago
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    no the area of a square is A=bh b=base h=height; sound familiar?

  14. anonymous
    • one year ago
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    kind of

  15. anonymous
    • one year ago
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    im confused

  16. anonymous
    • one year ago
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    yes, now look at the pic i drawn above, there is a triangle towards the top left......right?

  17. anonymous
    • one year ago
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    yes

  18. anonymous
    • one year ago
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    would that be 40?

  19. anonymous
    • one year ago
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    no can you write the formula for the triangle and try again?

  20. anonymous
    • one year ago
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    A= bh x 2

  21. anonymous
    • one year ago
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    @MLG360GABEN you just stated the formula above...... A=(bh)/2

  22. anonymous
    • one year ago
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    so 72?

  23. anonymous
    • one year ago
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    what does the slash mean?

  24. anonymous
    • one year ago
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    divide

  25. anonymous
    • one year ago
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    ohh

  26. anonymous
    • one year ago
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    18?

  27. anonymous
    • one year ago
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    or 36?

  28. anonymous
    • one year ago
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    here'\[A= \frac{ (20\times20) }{ 2 }\]s the formula:

  29. anonymous
    • one year ago
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    give me a hint

  30. anonymous
    • one year ago
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    well, 20x20 is 400

  31. anonymous
    • one year ago
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    is it lower or higher than a 100

  32. anonymous
    • one year ago
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    because i got 200

  33. anonymous
    • one year ago
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    well you are correct

  34. anonymous
    • one year ago
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    so its 200?!

  35. anonymous
    • one year ago
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    YEAAAAA

  36. anonymous
    • one year ago
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    thank YOU for all your time im sorry if I was frustrating

  37. anonymous
    • one year ago
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    no problem

  38. anonymous
    • one year ago
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    thanks bye :)

  39. anonymous
    • one year ago
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    now you need to find the area of the rectangel to the right

  40. anonymous
    • one year ago
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    ok

  41. anonymous
    • one year ago
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    so you remember the formula?

  42. anonymous
    • one year ago
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    A=bh

  43. anonymous
    • one year ago
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    so its A=6x36 right?

  44. anonymous
    • one year ago
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    can you find the area?

  45. anonymous
    • one year ago
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    i'll try

  46. anonymous
    • one year ago
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    its just multiplying :)

  47. anonymous
    • one year ago
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    so its just 216

  48. anonymous
    • one year ago
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    great!

  49. anonymous
    • one year ago
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    is that all did i do it

  50. anonymous
    • one year ago
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    now you need to subtract the smaller triangle from 216

  51. anonymous
    • one year ago
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    210

  52. anonymous
    • one year ago
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    you still need the formula for triangle! A=(bh)/2

  53. anonymous
    • one year ago
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    A=(6x6) / 2

  54. anonymous
    • one year ago
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    228?

  55. anonymous
    • one year ago
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    no the area of the triangle is 18

  56. anonymous
    • one year ago
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    yes i got that

  57. anonymous
    • one year ago
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    now subtract 216-18

  58. anonymous
    • one year ago
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    198

  59. anonymous
    • one year ago
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    198

  60. anonymous
    • one year ago
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    now add that to the area to the big triangle to the left

  61. anonymous
    • one year ago
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    200+198=???

  62. anonymous
    • one year ago
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    398

  63. anonymous
    • one year ago
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    goood job!! thats your final answer

  64. anonymous
    • one year ago
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    yay!!

  65. anonymous
    • one year ago
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    :)

  66. anonymous
    • one year ago
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    so how should I explain this in my essay?

  67. anonymous
    • one year ago
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    hmmm everything we have talked about before, how you split up the polygon into pieces and found the areas. then you added them together and got the final answer. and dont forget to mention the formulas

  68. anonymous
    • one year ago
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    ok thanks :)

  69. anonymous
    • one year ago
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    bye

  70. anonymous
    • one year ago
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    good luck :)

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