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!

Area of a cross section

  1. Apr 17, 2005 #1
    I'm going through my intro to mechanical engineering material and there was one thing I was never clear on:

    If you have a cross section of a rod, why isn't its' area at a cross section [tex]pi * r^2[/tex] as a opposed to [tex]piD^2/4[/tex], where D is the diameter?
     
  2. jcsd
  3. Apr 17, 2005 #2

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    Becasue people are actually measuring the diameter...?

    Daniel.
     
  4. Apr 17, 2005 #3
    whoops. That makes sense :D
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Area of a cross section
  1. Cross sectional area (Replies: 2)

Loading...