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Mathematics 17 Online
OpenStudy (anonymous):

Prove that the sum of the measures of the interior angles of a triangle is 180°. Be sure to create and name the appropriate geometric figures.

OpenStudy (anonymous):

Please explain

OpenStudy (anonymous):

picture?

OpenStudy (anonymous):

there's no picture since I need to create the figure on my own

OpenStudy (anonymous):

Can someone help me please

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