1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

B Bisecting angle proof

Tags:
  1. Nov 11, 2015 #1
    Hi, guys, i made an exercise, can you prove this?
    xybn6vc.png
    m(∠EAD)=[m(∠ABC)-m(∠ACB)]/2
    If you have 5 free minutes, try it, i hope you'll like it!
    It's my first own exercise, so I would like some feedback, too.
    AD= bisecting(splits angle in 2 equal sides)
     
    Last edited: Nov 11, 2015
  2. jcsd
  3. Nov 11, 2015 #2

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    You can't prove this, it is, generally, not true. By choosing D at different places along BC, angle EAD can take on many different values while the right side, not depending on D, is fixed. Was there some other condition on D you did not give?
     
  4. Nov 11, 2015 #3
    My bad, I forgot to add that AD splits the angle in 2 equal sides(angles).
     
  5. Nov 12, 2015 #4

    NascentOxygen

    User Avatar

    Staff: Mentor

    Thread closed for moderation.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Bisecting angle proof
  1. Bisection method (Replies: 1)

  2. Double angle proof's (Replies: 3)

  3. Compound angles proof (Replies: 5)

Loading...