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!

Homework Help: Trig polygon Question

  1. Dec 5, 2005 #1
    Hi guy's im havin trouble with this problem... can anyone help me out...A regular polygon of n sides is inscribed in a circle of radius r. if the area of the polygon is 2r^2 root 2 how many sides does it have
     
  2. jcsd
  3. Dec 5, 2005 #2
    Take the polygon has n sides. Now draw radius to each vertex of the polygon. we form n triangles whose area are equal. now use the formula that the area of a triangle ABC is given by 1/2absinC.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook