Geometry questions : Circles and triangles

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Find angle A if mDE is equal to 70 degrees and mBC is equal to 12 degrees

Aug 4th, 2015

Thank you for the opportunity to help you with your question!

70+12+X=180

82+X=180

X=180-82

=98degrees

Please let me know if you need any clarification. I'm always happy to answer your questions.
Aug 4th, 2015

You should take another look at the picture. 

Aug 4th, 2015

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