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Mathematics 18 Online
OpenStudy (cenaida):

Find the measure of angle CDE. A. 50 B. 65 C. 115 D. 130 http://roads.advancedacademics.com/contentserver/content/roadssection/279432/questions/assessments/t-introductiontrianglesquiz/geometry_unit_4_1_quiz_v3_14q.gif

OpenStudy (anonymous):

c

OpenStudy (cwrw238):

2x - 15 = 50 + x

OpenStudy (cwrw238):

solve this for x this comes form the fact thta external angle of a triangle = sum of the 2 opposite internal angles

OpenStudy (cwrw238):

to find angle CDE plug x into 2x - 15

OpenStudy (cwrw238):

can you solve that equation?

OpenStudy (cwrw238):

|dw:1411762723299:dw|

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