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anonymous

  • one year ago

Sammy is trying to determine how many triangles she can create out of a square grid that has a side of 12 inches. Use the image below to determine the area of the triangle and how many she can cut out.

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  1. anonymous
    • one year ago
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    |dw:1434047280066:dw| Help

  2. anonymous
    • one year ago
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    @Vocaloid

  3. Vocaloid
    • one year ago
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    area of a square = (side length)^2 area of triangle = (1/2)(base)(height) the side length of the square is 12 the base of the triangle is also 12 (it's the same length as the square) and the height is 6 so, let's start by finding 1. the area of the square 2. the area of the triangle

  4. anonymous
    • one year ago
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    alright

  5. anonymous
    • one year ago
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    @Vocaloid

  6. anonymous
    • one year ago
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    The area of the triangle is 36 in2, so she can create only 2 triangles. The area of the triangle is 72 in2, so she can create only 2 triangles. The area of the triangle is 36 in2, so she can create only 4 triangles. The area of the triangle is 72 in2, so she can create only 4 triangles.

  7. anonymous
    • one year ago
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    those are the choices

  8. Vocaloid
    • one year ago
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    first off, what is the area of the square?

  9. anonymous
    • one year ago
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    24

  10. anonymous
    • one year ago
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    @Vocaloid

  11. Vocaloid
    • one year ago
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    not quite, remember that area = (side length)^2 what is 12^2?

  12. anonymous
    • one year ago
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    so it would be 12 x 6?

  13. Vocaloid
    • one year ago
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    no, 12^2 is the same as (12)*12

  14. anonymous
    • one year ago
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    omg sorry i did 12 x 2 i ment 12 x 12 144 sorry

  15. Vocaloid
    • one year ago
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    right, so we know the area of the square (144) what is the area of the triangle?

  16. anonymous
    • one year ago
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    72

  17. Vocaloid
    • one year ago
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    hm, not quite remember: area of triangle = (1/2)(base)(height) base = 12 height = 6

  18. anonymous
    • one year ago
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    so 12 divided by 6?

  19. anonymous
    • one year ago
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    2

  20. Vocaloid
    • one year ago
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    not quite.... area = (1/2)*base*height

  21. Vocaloid
    • one year ago
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    (1/2)*6*12 = ?

  22. anonymous
    • one year ago
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    36 sorry i didnt figure it out earlier

  23. Vocaloid
    • one year ago
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    no need to apologize, that's why we're here! :) ok, so the total area of the square is 144, and the area of the triangle is 36, right? to find out the number of triangles she can make, we divide the area of the square by the area of each triangle so, what is 144/36?

  24. anonymous
    • one year ago
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    4

  25. Vocaloid
    • one year ago
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    great! so, she can make 4 triangles and each triangle has an area of 36 inch^2 so, which of the 4 answer choices do you think it is now?

  26. anonymous
    • one year ago
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    c

  27. anonymous
    • one year ago
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    Thank you @Vocaloid your literally amazing and you deserve a lot of fans and medals (: (online hugs)

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