# Thread: Construction help!

1. ## Construction help!

If I am given two circles, how would I construct a single line that intersects the interior of both circles at chords of equal length. A proof would be nice too! THANKS!

2. ## Re: Construction help!

Can you say what we are allowed to use? Straight edge, compass, ruler?

3. ## Re: Construction help!

Compass and straight edge. Thanks!

4. ## Re: Construction help!

Draw 2 equal intersecting circles centers O1 and O2 meetingatA and B
Draw chord AB
From B connect BO1 extended to C on circle O1.
ConnectCA extended to D on circle O2