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!

Sphere on a square

  1. Apr 27, 2015 #1
    If I have a square surface of 25 m^2 and I want to know how many sphere of radius r will cover 50% of the area, then how to proceed ?

    Should I calculate the area of circle which will form by projecting a sphere on a 2D surface, and divide 12.5 m^2 by this area to get the no. of spheres ?
     
  2. jcsd
  3. Apr 27, 2015 #2

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    If by "covering" you mean the sphere is directly above the area "covered" then, yes. A sphere of radius r "covers" a circle of radius r so area [itex]\pi r^2[/itex].
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Sphere on a square
  1. Square roots and square (Replies: 14)

  2. Area of sphere. (Replies: 8)

Loading...