7.5 Identifying a Trapezoid in the Coordinate Plane
Points A and B are movable in the Applet below.
Show that ORST is a trapezoid. Then decide whether it is isosceles.
Step 1: Compare the slopes of opposite sides by moving points A and B to create parallel lines.[br]
Is [i]ORST[/i] a trapezoid?
Step 2: Compare the lengths of legs [math]\overline{RO}[/math] and [math]\overline{ST}[/math] by using the "Distance" button under the "Tools" option in the Applet.[br]
Is [i]ORST isosceles?[/i]