Results 1 to 3 of 3

Math Help - Probability and inscribed angle.

  1. #1
    Newbie takersgirl007's Avatar
    Joined
    Jan 2010
    Posts
    8

    Probability and inscribed angle.

    See attachment.


    Probability:

    In \odotV, point C is randomly located so that it does not coinside with points R or S. If m\widehat{RS}=140, what is the probability that m\angle RCS=70 ?










    Attached Thumbnails Attached Thumbnails Probability and inscribed angle.-1.jpg  
    Last edited by takersgirl007; April 23rd 2010 at 08:55 AM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    A riddle wrapped in an enigma
    masters's Avatar
    Joined
    Jan 2008
    From
    Big Stone Gap, Virginia
    Posts
    2,551
    Thanks
    12
    Awards
    1
    Quote Originally Posted by takersgirl007 View Post
    See attachment.


    Probability:

    In \odotV, point C is randomly located so that it does not coinside with points R or S. If m\widehat{RS}=140, what is the probability that m\angle RCS=70 ?

    Hi takersgirl007,

    So glad you edited your picture. Now we can read it.

    If you randomly position point C between points R and S such that angle C is always 70 degrees, you will always intercept an arc of 140 degrees.

    You have 220 degrees of arc on which to place point C (360 - 140 =220).

    The probability then would be r\: \frac{11}{18}" alt="\frac{220}{360} \r\: \frac{11}{18}" />
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie takersgirl007's Avatar
    Joined
    Jan 2010
    Posts
    8
    Thank you so much!

    I was totally lost on this one..
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 5
    Last Post: June 10th 2010, 04:54 PM
  2. Triangle inscribed with an angle of 60
    Posted in the Geometry Forum
    Replies: 2
    Last Post: November 22nd 2008, 02:44 PM
  3. Replies: 5
    Last Post: November 10th 2008, 06:42 AM
  4. Replies: 27
    Last Post: April 27th 2008, 11:36 AM
  5. Replies: 2
    Last Post: February 15th 2007, 11:16 PM

Search Tags


/mathhelpforum @mathhelpforum