On the coordinate plane mark the points A (-8; 3) B (-1; 3) C (1; -2) draw the fourth point D

On the coordinate plane mark the points A (-8; 3) B (-1; 3) C (1; -2) draw the fourth point D so that you get a rectangle ABCD calculate its perimeter.

Arrange points A, B, C on the coordinate plane. We connect them with segments. Then we put point D in such a way that a rectangle ABCD is formed. The coordinates of the D point (-8; -2).

Find the perimeter of the rectangle ABCD.

Sides AB = CD = 8 – 1 = 7;

sides ВС = АD = 3 + 2 = 5.

We calculate the perimeter P = 2 * (7 +5) = 24.

Answer: D (-8; -2), the perimeter of the rectangle ABCD is 24.