Cyndi is making a quilt square. The blue, pink, and green pieces meet at a point. At the point, the blue piece has an angle measurement of 100, and the pink has an angle measurement of 80. What is the angle measurement determined by the green piece?
Source: EngageNY
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Learn more about the seminar and pre-session - Leverage the Repeatable Nature of Reasoning Routines to Develop Equitable Math Teaching Practices - on the Teachers Development Group website https://www.teachersdg.org/leadership-seminar/
Essential Strategies for Teaching Students with Learning Disabilities to Think Mathematically
Amy and Grace are Speaking Friday at 2:30 and Saturday at 8:00
Click here for more about NCTM's 100 Celebration
