Need help with this SAT practice Q: Find length of PR

L

lp_144

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Jul 14, 2008
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Can someone please explain how to get the answer to this?
 
lp_144 said:
Can someone please explain how to get the answer to this?
Click to expand...
Use the tangency to find the x-coordinate of R. Use the relationship between the center, the diameter, and the radius to find the y-coordinate of R. Then plug the coordinates of P and R into the Distance Formula, and simplify to find the requested value.

Have fun! :D

Eliz.
 
stapel said:
Use the tangency to find the x-coordinate of R. Use the relationship between the center, the diameter, and the radius to find the y-coordinate of R. Then plug the coordinates of P and R into the Distance Formula, and simplify to find the requested value.

Have fun! :D

Eliz.
Click to expand...

Thanks! I understand it now and I got the answer.

P.S. How do you put the picture directly onto the post instead of adding a link to it?
 
lp_144 said:
How do you put the picture directly onto the post instead of adding a link to it?
Click to expand...
One inserts an image by clicking on the "Img" button (for "image") instead of the "URL" button (for URLs).

Eliz.
 
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