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Coordinate Geometry: Parallel and Perpendicular Lines
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PSAT Prep
152 Coordinate Geometry: Parallel and Perpendicular Lines
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The coordinate diagram shows A(-6, -1), B(-2, 1), C(0, -3), and D(-4, -5). Which statement identifies a pair of perpendicular sides?
A
AB is perpendicular to CD.
B
AB is parallel to BC.
C
BC is parallel to CD.
D
AB is perpendicular to BC.
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