satellite73
how about some geometry help here for a probability question
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lgbasallote
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i dont think we are sophisticated enough to help THE satellite73 :S
saifoo.khan
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The Guru.
anonymous
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|dw:1337741712065:dw|
ratio of shaded region to total
inkyvoyd
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|dw:1337741796032:dw|
inkyvoyd
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are they parallel?
inkyvoyd
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impossible
anonymous
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i believe the parallel line bisects the height
lgbasallote
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well it's definitely not \(\frac{1}{4}\) :/
inkyvoyd
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|dw:1337741856986:dw|
unless
anonymous
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yeah like that
inkyvoyd
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ok, then it is half of 1/3 times 2
inkyvoyd
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1/3
inkyvoyd
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small to big is 1:2; since it's perp bisector, that's another 1:2. since small to big is 1:2, we have big/total, or 2/3, and since that's cut in half, 1/3
anonymous
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thank you!
inkyvoyd
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ok, I hope I made sense.
lgbasallote
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i just thought that it's half an area of trapezoid so the ratio might be \(\frac{b_1 + b_2}{2}\) lol
inkyvoyd
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that probably works too.
lgbasallote
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oh wait...my ratio should be \(\frac{b_1 + b_2}{2b}\) lol my ratio makes no sense