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Mathematics 20 Online
OpenStudy (anonymous):

Given Triangle DEF, and angle bisector EG, if the measure of angle DEG is 15 degrees, what is the measure of angle DEF? Select one: a. 15 b. 30 c. 45 d. 60

OpenStudy (anonymous):

@aum : can you help me please?

OpenStudy (anonymous):

is it B?

OpenStudy (aum):

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OpenStudy (aum):

EG is an angle bisector. So angles marked 1 are equal and each is 15 degrees. So DEG = <1 + <1 = 15 + 15 = 30 degrees.

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