7, Lesson 11, Unit 6, Grade 7, EngageNY icon
Instructional Activity

Discussion

Lesson 11. Unit 6. Grade 7 EngageNY

EngageNY7 min(s)

This Instructional Activity is a part of the Lesson 11, Unit 6, Grade 7. Why couldn't triangle ABC be formed in case (i), when the sum of the measurements of the angles A and B were greater than 180? The non-horizontal rays will not intersect due to the angle they form with AB. Why couldn't triangle ABC be formed in case (ii), when the sum of the measurements of angles A and B were supplementary?

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