lkelsey
lkelsey
22.01.2021 • 
Mathematics

ABCD is a parallelogram with coordinates A(4, 2), B(3, −1), C(−1, −1), and D(−1, 2). To prove that ABCD is a parallelogram, you would find which of the following? A measures of the angles
B slopes of the diagonals
C lengths of the diagonals
D slopes of the sides

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