Question

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

Answer 1

opposite sides of a quadrilateral are supplementary

Answer 2

this is what is missing



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