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Mathematics 13 Online
OpenStudy (anonymous):

ΔABC has undergone a 90° counter-clockwise rotation. m∠ABC = 85°, m∠BCA = 55° What is the measure of ∠B'C'A'? 85° 55° 40° 35°

OpenStudy (anonymous):

WILL FAN AND MEDEL

OpenStudy (anonymous):

what do you think the answer is?

OpenStudy (anonymous):

40

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