ABCD – rectangle. Determine the coordinates of point D if: b) A (0; 6) B (0; -2) C (5; -2).

You can find the coordinate of a point in different ways – graphically, by finding the lengths of the sides of a rectangle, etc.

We see that points A and B lie on one straight line x = 0.

We see that points B and C lie on the same straight line y = -2.

Segment AD is parallel to segment BC, which means that the ordinate of point D is equal to the ordinate of point A, that is, Yd = 6.

Since side CD is parallel to side AB, the abscissa of point D is equal to the abscissa of point C, that is, Xd = 5.

Point D coordinates – (5; 6).