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Mathematics 7 Online
OpenStudy (anonymous):

Look at the parallel lines AB and CD with line EF as the transversal What is the value of x?

OpenStudy (anonymous):

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OpenStudy (anonymous):

A. 25 B. 20 C. 15 D. 10

jimthompson5910 (jim_thompson5910):

3x+20 and x+60 are measures of vertical angles

jimthompson5910 (jim_thompson5910):

so the two angles are congruent, which means 3x+20 = x+60

OpenStudy (anonymous):

thanks!

jimthompson5910 (jim_thompson5910):

np

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