Quadrilateral [math]ABCD[/math] has vertices [math]A (0, 8)[/math], [math]B (11, 1)[/math], [math]C (0, –6)[/math], and [math]D (–11, 1)[/math]. Using slope, distance, and/or midpoints, classify quadrilateral [math]ABCD[/math] as a rectangle, rhombus, square, trapezoid, isosceles trapezoid, or kite.
[list=1] [*]Graph the quadrilateral. [*]Calculate the slopes of the sides to determine if the quadrilateral is a parallelogram. [*]Examine the slopes of consecutive sides to determine if the sides are perpendicular. [*]Calculate the lengths of the sides. [*]Summarize your findings. [/list] This applet is provided by Walch Education as supplemental material for the [i]CCGPS Analytic Geometry[/i] program. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on our resources.