In the diagram below, ABCD and DEFG are congruent squares, and angle CDG is 60°.

What is angle ACF?

(In reply to Solution by Rosy)

Rosy, I concur.  During review I did draw this to scale, and the diagram looked just as Charlie's, and I do believe Charlie used a program, which he cites from time to time (can't think of the name), to present the image accurately.

I trust ed's comment was not intended to belittle as that is not within the spirit of Perplexus.

Posted by brianjn on 2009-04-20 22:49:36