IM Geometry Unit 3 Lesson 9
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How could you justify each statement?
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How could you justify each statement?
Here are 2 triangles. One triangle has a 60 degree angle and a 40 degree angle. The other triangle has a 40 degree angle and an 80 degree angle.
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IM G Unit 3 Lesson from IM Geometry by Illustrative Mathematics, https://im.kendallhunt.com/HS/students/2/3//index.html. Licensed under the Creative Commons Attribution 4.0 license, https://creativecommons.org/licenses/by/4.0/.