Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Triangle relationship

  1. Nov 16, 2004 #1
    There are two right triangles, the first one with the base a and the height h. The second has the base a and 2h. The question is to prove the relationship between the theta 1 and theta 2 angles in the triangles (see attachment). I have been able to prove it with circle theorems but not with algebra, so i would appreciate if someone could deliver a algebraic proof, thank you.

    Attached Files:

    • 1.JPG
      File size:
      3.8 KB
  2. jcsd
  3. Nov 16, 2004 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    Well, you should have:
  4. Nov 16, 2004 #3
    follow up

    Does this mean theta 1 is twice as big as theta 2?
  5. Nov 16, 2004 #4


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    In general, No. However, it is approximatly true when h>> a.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook