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Mathematics 13 Online
OpenStudy (anonymous):

What is the measure of the missing angle? i think its c A. 60° B. 50° C. 40° D. 20° http://static.k12.com/calms_media/media/1299000_1299500/1299439/1/35c36e60a7d5b8b0936f1c339ee0461e083efa8d/140995.jpg

OpenStudy (michele_laino):

hint: if I call with x the missing angle, then we can write: 70+70+x=180 what is x?

OpenStudy (anonymous):

c

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