Deduce that R,S T are collinear
#Circle Geometry
gloomy verge
dense craterBOT
Deduce that R,S T are collinear
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clear gorge
Deduce that R,S T are collinear
(not really rigorous) but rotation around a point
gloomy verge
what do you mean
clear gorge
what do you mean
yeah, scratch that.
hmm, exactly how do you rigorously price co-linearity?
think about the conditions required
gloomy verge
I was thinking proving that dst plus angle rsd makes a stragith line idk if it works
swift adder
this is the simson line
swift adder
I was thinking proving that dst plus angle rsd makes a stragith line idk if it w...
i think this is a good idea
hint: you have more than one cyclic quadrilateral
gloomy verge
CDST?
swift adder
i briefly thought you were talking about a timezone
yes, CDST is cyclic
DST and DCT will be supplementary
gloomy verge
yes
swift adder
and there is another cyclic quadrilateral
gloomy verge
can we prove dct equals rad
swift adder
why?
gloomy verge
cuz rad equals dsr
swift adder
oh
gloomy verge
which would be supplementary to dst
swift adder
can we prove dct equals rad
RAD is very conveniently supplementary to another angle
gloomy verge
yeah it can't be cyclix
gloomy verge
i meant that <RAD and <BAD share a line
yeah
swift adder
so you’re left with BAD and DCB
which are supplementary
putting it all together:
<DST = 180 - <DCT = 180 - <DCB = <BAD = 180 - <RAD = 180 - <RSD
gloomy verge
annoying to scroll up and down
