A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 2 years ago
in triangle ABC BD is perpendicularAC and CE perpendicular AB if BD and CE intersect at O prove that angle BOC = 180 _BAC
anonymous
 2 years ago
in triangle ABC BD is perpendicularAC and CE perpendicular AB if BD and CE intersect at O prove that angle BOC = 180 _BAC

This Question is Closed

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0opposite sides of a quadrilateral are supplementary

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1374652155215:dw

campbell_st
 2 years ago
Best ResponseYou've already chosen the best response.2this 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

campbell_st
 2 years ago
Best ResponseYou've already chosen the best response.2the quadrilateral is DOEA so EAD + EOD = 360  180

campbell_st
 2 years ago
Best ResponseYou've already chosen the best response.2the fact they are perpendicular are given to you in the question

theEric
 2 years ago
Best ResponseYou've already chosen the best response.0And that makes EAD + EOD = 180, as Krishnadas posted.

campbell_st
 2 years ago
Best ResponseYou've already chosen the best response.2yep... 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
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.