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Mathematics 17 Online
OpenStudy (a1234):

Find the angle measures of ABCD. I found angles A and D, but I get 38 and 142 for B and C. The answer key says 54 and 126.

OpenStudy (a1234):

jimthompson5910 (jim_thompson5910):

What did you get for x?

OpenStudy (a1234):

38

jimthompson5910 (jim_thompson5910):

x = 38 is too high, try again

jimthompson5910 (jim_thompson5910):

A+D = 180 2x+3+3x+7 = 180 x = ??

OpenStudy (a1234):

34

jimthompson5910 (jim_thompson5910):

yes x = 34

OpenStudy (a1234):

Got it now :). Thanks!

jimthompson5910 (jim_thompson5910):

yw

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