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

In a Right Triangle you have one angle - how do you find the other?

  1. Sep 20, 2012 #1
    If you have a Right Triangle and you have one angle, alpha. How do you find the other angle, beta?
     
  2. jcsd
  3. Sep 20, 2012 #2
    The interior angles of triangles always add up to a specific number of degrees, and that number is the same for all triangles. Do you know what it is?

    Given a right triangle, you should automatically know the number of degrees of the angle that defines it as a right triangle. That is: all right angles are the same specific number of degrees, and a right triangle is only a right triangle because it contains one angle with this specific number of degrees. How many degrees are there in a right angle?

    In this problem, you have been given another angle as well. You just add that to the number of degrees there always are in a right angle, and subtract them both from the well known number that all triangles add up to. The difference is the measure of the third angle.
     
  4. Sep 22, 2012 #3

    mathwonk

    User Avatar
    Science Advisor
    Homework Helper

    are you in euclidean geometry? if so it is easy, if not it is not possible.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: In a Right Triangle you have one angle - how do you find the other?
Loading...