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anonymous

  • one year ago

help!

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  1. anonymous
    • one year ago
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    @Vocaloid

  2. Vocaloid
    • one year ago
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    post the question please...

  3. anonymous
    • one year ago
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    The figure below shows a shaded region and a nonshaded region. Angles in the figure that appear to be right angles are right angles. A picture of a rectangle is shown. The bottom of the rectangle is labeled 16 ft. The right side of the rectangle is labeled 8 ft. At the bottom left side of the rectangle there is a label that reads 2 ft. Inside the rectangle is a shaded region. The bottom of the region is labeled 8 ft and this side is perpendicular to the left side of the rectangle. The right side of the shaded region has a perpendicular line segment extending upward that is labeled 2 ft. At the top of this line segment is another line segment perpendicular to the right that reads 2 ft. At the end of this line segment is a perpendicular line segment extending upward that reads 1 ft. There is a line segment joining the end of this line segment with the top left corner of the rectangle. What is the area, in square feet, of the shaded region? Enter your answer in the box. square feet What is the area, in square feet, of the nonshaded region? Enter your answer in the box. square feet

  4. Vocaloid
    • one year ago
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    can you try drawing it? this is a bit confusing to understand

  5. anonymous
    • one year ago
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    ok ill draw it :)

  6. anonymous
    • one year ago
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    |dw:1440101981696:dw|

  7. anonymous
    • one year ago
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    @Vocaloid sorry im not the best drawer :)

  8. anonymous
    • one year ago
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    @Vocaloid please help!

  9. Vocaloid
    • one year ago
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    |dw:1440102638495:dw|

  10. Vocaloid
    • one year ago
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    and judging by the problem, I'm guessing that this part is shaded?|dw:1440102795581:dw|

  11. anonymous
    • one year ago
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    ok then how do we get the answer?

  12. Vocaloid
    • one year ago
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    well, let's just look at the shaded part for now |dw:1440103002747:dw|

  13. Vocaloid
    • one year ago
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    we can split this into two rectangles like so:

  14. anonymous
    • one year ago
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    ok

  15. Vocaloid
    • one year ago
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    |dw:1440103070299:dw|

  16. Vocaloid
    • one year ago
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    |dw:1440103085020:dw|

  17. anonymous
    • one year ago
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    ok

  18. Vocaloid
    • one year ago
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    the diagram tells us that rectangle A has length 8 and width 3, so the area of rectangle A = ?

  19. anonymous
    • one year ago
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    what do i have to do to find the area of A

  20. Vocaloid
    • one year ago
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    area of a rectangle = length*width = ?

  21. anonymous
    • one year ago
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    so 24

  22. Vocaloid
    • one year ago
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    right, now we find the area of rectangle B length = 2, width = 1, so area of rectangle B = ?

  23. anonymous
    • one year ago
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    2

  24. Vocaloid
    • one year ago
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    right, now add the two areas together: area of A + area of B = ?

  25. anonymous
    • one year ago
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    25

  26. Vocaloid
    • one year ago
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    try again...

  27. anonymous
    • one year ago
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    oh sorry 26

  28. Vocaloid
    • one year ago
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    right, so 26 is our shaded area

  29. anonymous
    • one year ago
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    ok now nonshaded?

  30. anonymous
    • one year ago
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    wait no the answer is 18 for the shaded area

  31. anonymous
    • one year ago
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    because its a 2 not a 3 .. so 8*2 not 8*3

  32. Vocaloid
    • one year ago
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    |dw:1440103580816:dw|

  33. Vocaloid
    • one year ago
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    |dw:1440103611680:dw|

  34. Vocaloid
    • one year ago
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    unless my drawing is incorrect

  35. anonymous
    • one year ago
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    oh! so its 26

  36. Vocaloid
    • one year ago
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    right, let's keep moving...

  37. anonymous
    • one year ago
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    k

  38. Vocaloid
    • one year ago
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    now, let's go back to the whole picture|dw:1440103693588:dw|

  39. anonymous
    • one year ago
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    right

  40. Vocaloid
    • one year ago
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    we can see that the area of the big rectangle = shaded + unshaded we have shaded, and we want to find unshaded. let's start by finding the area of the big rectangle the rectangle has width 8 and length 16, so area = ?

  41. anonymous
    • one year ago
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    128

  42. Vocaloid
    • one year ago
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    right. area of big rectangle = 128 so unshaded = area of big rectangle - shaded = ?

  43. anonymous
    • one year ago
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    102

  44. Vocaloid
    • one year ago
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    yup, so we're done

  45. anonymous
    • one year ago
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    so the nonshaded area is 102 feet

  46. Vocaloid
    • one year ago
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    right

  47. anonymous
    • one year ago
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    ok thanks :)

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