Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Find The Value of X Given (x,2)

  1. Apr 28, 2008 #1

    LLS

    User Avatar

    [SOLVED] Find The Value of X Given (x,2)...

    1. The problem statement, all variables and given/known data
    In the figure above, Lines AB and BC are radii of the circle with center B. What is the value of X? (see attached)

    I am lost. I don't know how to begin to solve this problem.

    <ABC is a right triangle. Does that factor into the equation?

    It would appear that the answer has to be a negative number.
     

    Attached Files:

    Last edited: Apr 28, 2008
  2. jcsd
  3. Apr 28, 2008 #2

    cristo

    User Avatar
    Staff Emeritus
    Science Advisor

    Hint: find the radius of the circle.
     
  4. Apr 28, 2008 #3

    LLS

    User Avatar

    Would the radius be 5?

    The answer is -5?
     
  5. Apr 28, 2008 #4

    nrqed

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    No. You must subtract 5 from the x coordinate of the center of the circle....What does that give?
     
  6. Apr 28, 2008 #5

    LLS

    User Avatar

    That would be 1 - 5 = -4

    (-4, 2)
     
  7. Apr 28, 2008 #6

    cristo

    User Avatar
    Staff Emeritus
    Science Advisor

    Yup!
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook