Results 1 to 3 of 3

Math Help - Measurement of quater circle

  1. #1
    Newbie
    Joined
    Mar 2008
    From
    Taunton, UK
    Posts
    2

    Measurement of quater circle

    Hello all, im a n00b, go easy on me.

    1st I hope I have this in the correct forum, please move if not

    I am designing a lightbox, so I can take some pretty cool photographs, and I want to design it properly first, general maths is ok, but when it comes to calculating the length of the circumference of circles i am stumped.

    See my diagram, my light box is to have a quater circle curve, of 10cm radius. What I need to know, is how long the circumference of that quater circle is.

    I can then do the rest of the calculations to determin the back wall and the floor.


    Many many thanks.
    ILMV aka Ben
    Attached Thumbnails Attached Thumbnails Measurement of quater circle-math.jpg  
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Eater of Worlds
    galactus's Avatar
    Joined
    Jul 2006
    From
    Chaneysville, PA
    Posts
    3,001
    Thanks
    1
    The circumference of a circle is not a complicated formula. Easy to learn.

    It's 2{\pi}r. In your case, r=10, so you have a circumference of 20{\pi}=62.83

    Now a quarter circle is 1/4th this. \frac{20{\pi}}{4}=5{\pi}=15.71
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Mar 2008
    From
    Taunton, UK
    Posts
    2
    Many Thanks

    Just what I needed, I wil bookmark this for future reference.

    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. 1 quater squared
    Posted in the Algebra Forum
    Replies: 2
    Last Post: April 2nd 2010, 12:11 AM
  2. Measurement
    Posted in the Pre-Calculus Forum
    Replies: 6
    Last Post: June 3rd 2008, 07:28 PM
  3. How do I get the measurement?
    Posted in the Geometry Forum
    Replies: 4
    Last Post: July 12th 2007, 04:50 AM
  4. measurement
    Posted in the Algebra Forum
    Replies: 1
    Last Post: May 23rd 2007, 07:44 AM
  5. astronmonical measurement
    Posted in the Math Topics Forum
    Replies: 7
    Last Post: March 22nd 2007, 11:28 AM

Search Tags


/mathhelpforum @mathhelpforum