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Geometry 19 Online
OpenStudy (anonymous):

When 2 lines cross, 2 pairs of vertical angles are formed. What is the sum of all 4 angles? A. 180° B. 270° C. 360° D. 540°

OpenStudy (anonymous):

C

OpenStudy (anonymous):

|dw:1354243881450:dw| No matter how the lines cross, the total angle is always 360

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