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Mathematics 7 Online
OpenStudy (anonymous):

if a and b are vertical angles, and a=38 degrees, find the measure of B. a. B=7 DEGREES B. B=57 DEGREES C. B=38 DEGREES D. B=142 DEGREES

jimthompson5910 (jim_thompson5910):

Hint: vertical angles look like this |dw:1349931191615:dw|

OpenStudy (anonymous):

wouldnt it be C then?

jimthompson5910 (jim_thompson5910):

you got it

jimthompson5910 (jim_thompson5910):

vertical angles are congruent, so angle B is also 38 degrees

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