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in triangle ABC BD is perpendicularAC and CE perpendicular AB if BD and CE intersect at O prove that angle BOC = 180 _BAC
 8 months ago
 8 months ago
in triangle ABC BD is perpendicularAC and CE perpendicular AB if BD and CE intersect at O prove that angle BOC = 180 _BAC
 8 months ago
 8 months ago

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KrishnadasBest ResponseYou've already chosen the best response.0
opposite sides of a quadrilateral are supplementary
 8 months ago

KrishnadasBest ResponseYou've already chosen the best response.0
dw:1374652155215:dw
 8 months ago

campbell_stBest ResponseYou've already chosen the best response.2
this is what is missing dw:1374652805954:dw Angle OEA and Angle ODA are both 90 so they sum to 180. by angle sum of a quadrilateral EAD + EOD = 180 or are supplementary
 8 months ago

campbell_stBest ResponseYou've already chosen the best response.2
the quadrilateral is DOEA so EAD + EOD = 360  180
 8 months ago

campbell_stBest ResponseYou've already chosen the best response.2
the fact they are perpendicular are given to you in the question
 8 months ago

theEricBest ResponseYou've already chosen the best response.0
And that makes EAD + EOD = 180, as Krishnadas posted.
 8 months ago

campbell_stBest ResponseYou've already chosen the best response.2
yep... the initial statement about opposite sides being supplementary makes no sense. by if you show the right angles on the perpendiculars then it makes it easy to understand that EAD and EOD are supplementary
 8 months ago
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