anonymous
  • anonymous
difficult surface area question:
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
|dw:1371369468563:dw|
dan815
  • dan815
hihihi
dan815
  • dan815
triangular prism?

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anonymous
  • anonymous
|dw:1371369495499:dw|
anonymous
  • anonymous
it is curved
anonymous
  • anonymous
|dw:1371369661531:dw|
anonymous
  • anonymous
im guessing this is ur question dan. make it ur *****
anonymous
  • anonymous
oh, lol.
dan815
  • dan815
so its a piece of a cylinder
anonymous
  • anonymous
yes
dan815
  • dan815
|dw:1371369718011:dw|
dan815
  • dan815
what is the area of thjat pizza piece down there
anonymous
  • anonymous
o wait, when i saw surface, i meant surface integrals. oops
anonymous
  • anonymous
60 degrees
dan815
  • dan815
yes i know i was wishing it was surface integrals
dan815
  • dan815
what is circumferrance of that line there
dan815
  • dan815
|dw:1371369880725:dw|
dan815
  • dan815
the whole circumferance of circle = 2piR so the circumferance of just tat part is pi/2*r
dan815
  • dan815
now if u imagine cutting that curver pat off your object ull have a piece with that width and height of 200mm|dw:1371369997984:dw|
dan815
  • dan815
can u do the rest now, just add up all the surface area
dan815
  • dan815
and i already showed u how to calculate the curvfed triangle area too
dan815
  • dan815
|dw:1371370102926:dw|
dan815
  • dan815
|dw:1371370215847:dw|
dan815
  • dan815
hey do you understand it?
dan815
  • dan815
you just need to break it up into chunks

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