Find angle formed between two external congruent tangents of two circles

I

Ivan M.

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Apr 5, 2014
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Hello,

I am having a little issue with trying to figure out a problem. Please refer to problem 39 in the picture attached below

help is greatly appreciated! :)
 

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Ivan M. said:
Hello,

I am having a little issue with trying to figure out a problem. Please refer to problem 39 in the picture attached below

help is greatly appreciated! :)
Click to expand...

Join the centers of the circles and the apex of the angle (those will be in one st. line)

Now use similar triangle theorem....

Please share your work with us ...

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/th...Before-Posting
 
Could you maybe elaborate that with a picture?
I would appreciate it

Subhotosh Khan said:
Join the centers of the circles and the apex of the angle (those will be in one st. line)

Now use similar triangle theorem....

Please share your work with us ...

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/th...Before-Posting
Click to expand...
 
Could Subhotosh Khan or Denis help out with a diagram? i am having difficulties understanding the joining of centers together.

P.S. I am trying to figure out how to explain this to my GF... I am currently taking upper division Analysis courses but it has been days since i took trig and geometry.. need a little refresher
 
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