im.g.2.10.Synthesis - exploring equilateral quadrilaterals
Attribution
Illustrative Mathematics. geometry. unit 2. Lesson 10. Practicing Proofshttps://im.kendallhunt.com/HS/teachers/2/2/10/index.htmlLicensed under the Creative Commons Attribution 4.0 license,https://creativecommons.org/licenses/by/4.0/