Mathematics, 07.06.2021 22:50, atefah88

On a coordinate plane, triangle B C D has points (negative 4, 1), (negative 2, 1), (negative 4, 3). Triangle B prime C prime D prime has points (negative 1, negative 4), (negative 1, negative 2), (negative 3, negative 4). Triangle BCD is rotated counterclockwise to form triangle B’C’D’. What is the angle of rotation? 45° 90° 180° 360°

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On a coordinate plane, triangle B C D has points (negative 4, 1), (negative 2, 1), (negative 4, 3)....