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im.g.1.7.2.It's cool to be square.

Use straightedge and compass moves to construct a square with segment AB as one of the sides.

Attribution

illustrative mathematics. geometry. unit 1. section 7. activity 2. "It's cool to be square" https://im.kendallhunt.com/HS/teachers/2/1/7/index.html Licensed under the Creative Commons Attribution 4.0 license https://creativecommons.org/licenses/by/4.0/

Try doing this activity without watching the video. If you're stuck, the video shows one possible solution.