1. Not finding help here? Sign up for a free 30min 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!

Triangle plane surface 2m base and 3 height

  1. Apr 22, 2012 #1
    Hello ..

    This is a question with answer , From where " 1 " in the solution ?

    http://store1.up-00.com/Mar12/yd170715.jpg [Broken]
     
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Apr 22, 2012 #2
    see here

    http://store1.up-00.com/Mar12/uK579693.jpg [Broken]
    and
    http://store1.up-00.com/Mar12/D4a79693.jpg [Broken]
     
    Last edited by a moderator: May 5, 2017
  4. Apr 22, 2012 #3
    where are you ?
     
  5. Apr 23, 2012 #4
    similar question , but here first find angle

    http://store1.up-00.com/Mar12/61270702.jpg [Broken]
     
    Last edited by a moderator: May 5, 2017
  6. Apr 23, 2012 #5
    Where are you ??
    that question which I want only about sin

    sin = o/h

    but my Q now
    h= 1 why
    is because 3/3
    or 2 / 2
    or what please help me
     
  7. Apr 23, 2012 #6
    Your question is unclear to me.
     
  8. Apr 23, 2012 #7
    I mean
    sin30 = y/1
    So Xbar = 1.5 + y
    So Xbar = 1.5 + 1Xsin30

    Now my question from where we got (one)
    Is by divide 3/3 as (h/3 ) = 1 or what ?.

    please I want your help ?
     
  9. Apr 23, 2012 #8
    The base of the triangle is the part closest to the surface. If triangle height is 3, the centroid of a triangle is 1/3 the distance from the base to the apex opposite the base. 1/3 of 3 is 1 and 1 is the hypotenuse.
     
  10. Apr 23, 2012 #9
    thanks sooooooooooo much .. where are you before ... ^)^ ?
     
  11. Apr 23, 2012 #10
    Mowing the front lawn.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Triangle plane surface 2m base and 3 height
Loading...