Congruence and Similarity/1
Complementary Angles/1
Cartesian Plane/1
Angles/sheet 9
Angles/sheet 8
Angles/sheet 7
Angles/sheet 6
Angles/sheet 5
Angles/sheet 4
Angles/sheet 3
 is defined by two perpendicular number lines: the x -axis, which is horizontal, and the y -axis, which is vertical. Using these axes, we can describe any point in the plane using an ordered pair of numbers.)
