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Home > GC > Chapter 7 > Lesson 7.2.5 > Problem 7-84


anglea , angleb , and ∡c are exterior angles of the triangle below. Find manglea, mangleb, and manglec. Then find manglea + mangleb + manglec. Homework Help ✎

How do the angles within a triangle relate to each other? How do the exterior angles relate to those within the triangle?