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7. The picture shows 3 triangles. Triangle 2 and 3 are images of triangle 1 under rigid

transformations.


A. Find 2 angles that have the same measure, and explain how you know they have the same measure.


B. If the sum of the interior angles of a triangle is 180 degrees, how can you find the sum of the interior angles of quadrilateral BCDE.


PLEASE HURRY IT IS TIMED