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Mathematics 14 Online
OpenStudy (anonymous):

Three copies of a triangle were rotated and positioned as shown. Which statement is always true about the angles in the figure? A. m∠a = m∠b B. m∠b = m∠c C. The sum of angles a, b, and c is 180°. D. Angle a and angle b form a right angle. http://static.k12.com/calms_media/media/1560500_1561000/1560886/1/9802ac7ff988edb935d91b3cca776050aab31677/MS_IMC-1401112-109063.jpg

OpenStudy (perl):

a does not have to equal to b

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