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Homework Help: Help with circle formula

  1. Mar 9, 2008 #1
    1. The problem statement, all variables and given/known data
    if i have a plane, i want to find a way to cover it completely with circles of radius r. so ofcourse the circles will overlap to have no gaps on the plane. say for example the plane is a big rectangle. how do i find a formula to find the minimum number of circles.

    2. Relevant equations

    3. The attempt at a solution

    i first inscribed a square in a circle an found thw wastage of circle material to be pi/2-1.
    and i know that overall, the area of the circle times the number of circles must be greater than the area of the plane
    but i'm stuck on how to find a formula.
  2. jcsd
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