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OpenStudy (anonymous):
In the figure below, AD and EC intersect at point G, mAGB = 33°, and mAGE = 75°. https://app32.studyisland.com/pics/154646pic11.png What is mBGC? a 147° b 72° c 105° d 108°
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OpenStudy (anonymous):
@israa88
OpenStudy (anonymous):
@butterflydreamer
OpenStudy (butterflydreamer):
|dw:1430621154394:dw| can you see how mAGB, mAGE and mBGC lie on the straight line EC? This means that because the angle sum of a straight line = 180 mAGB + mAGE + mBGC = 180 degrees Since mAGB = 33, mAGE = 75, sub it into the formula above and we end up with: 33 + 75 + mBGC = 180 therefore, mBGC = 180 - 33 - 75 = ?
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