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cbrusoe

  • 2 years ago

Tiara bought a cylindrical shaped cake with a base area of 64 square inches. The image below is a top view of the cake. The shaded portion represents the chocolate flavored icing and the white square portion represents the vanilla flavored icing. Tiara cuts out a piece of cake with chocolate icing for herself and a piece of cake with vanilla icing for Meg, as shown below. http://go.flvs.net/courses/1/flvs_57_3641_12676/ppg/respondus/pool_Geom_3641_Seg_Two_Practice_Exam_01/image0384e9da061.jpg

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  1. cbrusoe
    • 2 years ago
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    Assuming the icing only appears on top of the cake, about how much more icing did Meg get than Tiara? Use 3.14 for π. Answer 4.4 in2 6.8 in2 10.2 in2 12.2 in2

  2. PaxPolaris
    • 2 years ago
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    |dw:1337883577580:dw| Tiara gets the circle-segment ... Meg the triangle

  3. cbrusoe
    • 2 years ago
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    yes, i get that part. im kinda looking for a formula or equation i can use and plug numbers into to figure the answer out..

  4. PaxPolaris
    • 2 years ago
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    to find the area of the segment ... you do : area of the SECTOR minus area of TRIANGLE

  5. PaxPolaris
    • 2 years ago
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    first what's the area of the whole SECTOR being cut ?

  6. PaxPolaris
    • 2 years ago
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    \[= {90\over360} \times (area\ of\ Circle) \]|dw:1337884191361:dw|

  7. PaxPolaris
    • 2 years ago
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    for the area of triangle you may have to find radius (r)|dw:1337884518862:dw|

  8. cbrusoe
    • 2 years ago
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    gotchaaaaa sorry for the late reply everybody just started getting home so i had to stop for a min. but thanks!! =)

  9. Blahh23
    • 2 years ago
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    @experimentX can u tell me what this guy means?

  10. experimentX
    • 2 years ago
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    Oh, |dw:1338915434107:dw|

  11. experimentX
    • 2 years ago
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    |dw:1338915485685:dw|

  12. experimentX
    • 2 years ago
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    Find the ares of one ... multiply it by 4

  13. experimentX
    • 2 years ago
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    Also |dw:1338915605808:dw|

  14. experimentX
    • 2 years ago
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    Find the areas for Meg and Tiara

  15. Blahh23
    • 2 years ago
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    Oh gosh. I'm retarded. how would i find the areas .. what formula?

  16. experimentX
    • 2 years ago
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    You found the radius right?? Area of triangle = 1/2 x base x height <-- here base and height is both equal to radius

  17. Blahh23
    • 2 years ago
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    the radius i found was 8 correct??

  18. experimentX
    • 2 years ago
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    area of Tiara's portion area of sector - area of triangle(Meg) area of sector = 90/ 360 * pi x r^2 = 64/4 = 16

  19. experimentX
    • 2 years ago
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    No ...

  20. experimentX
    • 2 years ago
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    pi x R^2 = 64, R = sqrt(64/pi)

  21. Blahh23
    • 2 years ago
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    SO the radius i got by dividing g4 by pi and then square rooting it was 4.51

  22. Blahh23
    • 2 years ago
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    64*

  23. experimentX
    • 2 years ago
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    yes ...

  24. Blahh23
    • 2 years ago
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    the area of the triangle is 10.17?

  25. Blahh23
    • 2 years ago
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    how do we find tiras ?? what formula ?..

  26. experimentX
    • 2 years ago
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    area of Tiara's portion = area of sector - area of triangle(Meg) area of sector = 90/ 360 * pi x r^2 = 64/4 = 16

  27. Blahh23
    • 2 years ago
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    i have area of sector and of triangle. i just don't know about the tiara's portion because idk what formula to use.. the circumference of the circle? or of the arc?

  28. Pac1f1cIslander
    • 2 years ago
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    It's obviously pink

  29. Nimwhitted
    • 2 years ago
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    Wat.

  30. DannyRomero19
    • 2 years ago
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    MATH IS GREAT

  31. Nimwhitted
    • 2 years ago
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    You are such a help.

  32. Pac1f1cIslander
    • 2 years ago
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    It actually might be purple...royal purple...

  33. DannyRomero19
    • 2 years ago
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    TRUE TRUE

  34. Nimwhitted
    • 2 years ago
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    C'mon i really need this questionnn!

  35. Pac1f1cIslander
    • 2 years ago
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    I'm being serious!

  36. Nimwhitted
    • 2 years ago
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    trolololol

  37. Pac1f1cIslander
    • 2 years ago
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    Not trollin, I'm being serious, it's ROYAL PURPLE

  38. Pac1f1cIslander
    • 2 years ago
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    And plus that guy died! Have some respect!

  39. DannyRomero19
    • 2 years ago
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    I LOVE ROLO

  40. that1chick
    • 2 years ago
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    http://openstudy.com/study#/updates/50316320e4b0aa95e34cbafd

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