Tangent Circles & Triangles Hint #2

If you're having a hard time coming up with a solution, keep in mind the strategy for completing a proof.

The diagram below contains one final addition, which will help you to complete the logical chain of facts. A new line segment has been constructed from point D to the new point, H, such that DH is parallel and equal to the line segment from Oa to Ob, connecting the centers of the circles.

If you've done your background research, you should be able to complete the proof with the information you now have available.

Return to Hint #1.

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