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OpenStudy (anonymous):
ABCD is a rectangle. On line segment AB, E is a point such that ∠ADE=17∘ and ∠BCE=29∘. What is the measure of ∠DEC (in degrees)?
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OpenStudy (mathstudent55):
|dw:1360550901806:dw| By complementary angles, you can fing a and b. Then find the angle you need bec all angles of a triangle add to 180.
OpenStudy (anonymous):
46 degrees
OpenStudy (mathstudent55):
Correct
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