Results 1 to 2 of 2

Math Help - apothem

  1. #1
    Member
    Joined
    Sep 2009
    Posts
    106

    apothem

    the radius of a circle is 1000 inches. find the apotherm of a regular pentagon inscribed in the circle
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Opalg's Avatar
    Joined
    Aug 2007
    From
    Leeds, UK
    Posts
    4,041
    Thanks
    7
    Quote Originally Posted by aeroflix View Post
    the radius of a circle is 1000 inches. find the apotherm of a regular pentagon inscribed in the circle
    The apothem is the red line. The radius of the circle is the blue line. What is the angle between them? Can you use some simple trigonometry in the red-blue-black triangle to find the connection between the apothem and the radius?
    Attached Thumbnails Attached Thumbnails apothem-apothem.png  
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: September 5th 2009, 05:21 PM
  2. Apothem
    Posted in the Trigonometry Forum
    Replies: 7
    Last Post: August 20th 2008, 04:34 PM
  3. Apothem
    Posted in the Geometry Forum
    Replies: 3
    Last Post: April 20th 2008, 01:58 PM

Search Tags


/mathhelpforum @mathhelpforum