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AcidRa1n

PLEASE HELP http://i.imgur.com/GVvd6.png

  • one year ago
  • one year ago

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  1. AcidRa1n
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    5. PIE12 6. PIE36 Is that right?

    • one year ago
  2. Mertsj
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    |dw:1338516252471:dw|

    • one year ago
  3. Mertsj
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    3. 3sqrt3

    • one year ago
  4. Mertsj
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    |dw:1338516418696:dw|

    • one year ago
  5. Mertsj
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    Radius of circle = 6 since the triangles are equilateral. So circumference = 2(6)pi=12pi

    • one year ago
  6. Mertsj
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    Area of circle = 36 pi

    • one year ago
  7. Mertsj
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    Do you mean how many degrees in each interior angle?

    • one year ago
  8. AcidRa1n
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    nvm

    • one year ago
  9. AcidRa1n
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    Can you check my other answers? I'm dont with all of them here, I need to scan it again

    • one year ago
  10. AcidRa1n
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    done*

    • one year ago
  11. Mertsj
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    I got 8.3 for the apothem of the pentagon. Your setup seems to be right. Also you need to pay more attention to the form of the answers in both questions.

    • one year ago
  12. Mertsj
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    \[\tan 36=\frac{6}{b}\] \[b \tan 36=6\] \[b=\frac{6}{\tan 36}=8.3\]

    • one year ago
  13. Mertsj
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    Therefore the area of the pentagon = 5(1/2)(12)(8.3)=247.7

    • one year ago
  14. Mertsj
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    Slant height = \[\sqrt{(8.3)^2+(10)^2}=13.0\]

    • one year ago
  15. Mertsj
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    Surface = 5(1/2)(13.0)(12)+247.7=637.7

    • one year ago
  16. Mertsj
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    \[V=\frac{1}{3}(247.7)(10)=825.7\]

    • one year ago
  17. AcidRa1n
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    are you sure O.o I got complete diferent answers... Smh at me

    • one year ago
  18. Mertsj
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    The reason is that we did not agree on the apothem. Did you see what I said about the apothem?

    • one year ago
  19. AcidRa1n
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    ohh yeah so everything would be wrong after that lol..

    • one year ago
  20. Mertsj
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    Well check your work. I could have made a mistake. We agree on the setup.

    • one year ago
  21. AcidRa1n
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    are you sure about the surface area? you ADD the area of the pentagon?

    • one year ago
  22. Mertsj
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    The pyramid is composed of the base which is a pentagon and 5 sides which are 5 congruent triangles. If it said lateral surface area it would be just the 5 triangles but it says surface area so we have to assume it means all of the surfaces.

    • one year ago
  23. AcidRa1n
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    oh yeah

    • one year ago
  24. AcidRa1n
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    How long will you be on? Im working on the other side will you be able to help me with that?

    • one year ago
  25. Mertsj
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    Probably about another 20-25 minutes.

    • one year ago
  26. AcidRa1n
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    alright

    • one year ago
  27. AcidRa1n
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    @Mertsj http://i.imgur.com/bpW5d.jpg

    • one year ago
  28. AcidRa1n
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    im doing it as we speak I just dont want you to go

    • one year ago
  29. AcidRa1n
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    lol you like my -10?

    • one year ago
  30. Mertsj
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    1/2 the difference of the arcs.

    • one year ago
  31. Mertsj
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    30

    • one year ago
  32. Mertsj
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    18. outside times whole = outside times whole.

    • one year ago
  33. Mertsj
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    8(x+8)=7(16) 8x+64=112 x=6

    • one year ago
  34. AcidRa1n
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    Are you sure about 17. being 30? I think it's only half for like the 120 down to 60. 60 down to B is diferent I think

    • one year ago
  35. Mertsj
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    The measure of an angle formed by a two secants drawn from a point outside the circle is half the the difference of the intercepted arcs. (far arc - near arc)

    • one year ago
  36. Mertsj
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    19. Half the sum of the arcs.

    • one year ago
  37. Mertsj
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    20. 6y=8(9)

    • one year ago
  38. Mertsj
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    21. \[(x-3)^2+(y+9)^2=25\]

    • one year ago
  39. Mertsj
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    22. \[(x+4)^2+(y-11)^2=100\]

    • one year ago
  40. Mertsj
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    23. 13.6

    • one year ago
  41. AcidRa1n
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    Mert

    • one year ago
  42. AcidRa1n
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    Do you have paypal? lol

    • one year ago
  43. AcidRa1n
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    Id like to make a educational donation

    • one year ago
  44. AcidRa1n
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    LOL

    • one year ago
  45. Mertsj
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    24. 8.0

    • one year ago
  46. Mertsj
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    25. 44 but you had better check these answers because I did not. I just whipped them off. Could easily have hit a wrong button. Good night

    • one year ago
  47. AcidRa1n
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    ah! night man thanks

    • one year ago
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