[list][b]Observe all parts of the trapezoid.[/b] Compare them to the properties in your notes. [*]In particular, look at the various angle measures, note all observations: base angles on the same base, consecutive angles on different bases - what do you notice? [*][i]Keep in mind, when two parallel lines are cut by a transversal, same-side interior angles are supplementary.[/i] [*]How does this theorem apply to the trapezoid. [b]After completing your observations for the standard trapezoid,[/b] click the box next to Trapezoid and the box next to Isosceles Trapezoid to reveal the isosceles trapezoid. [*]Observe all parts of the isosceles trapezoid. Compare them to the properties in your notes. [*]In particular, look at the various angle measures, note all observations: base angles on the same base, consecutive angles on different bases - what do you notice, and how is this different from the standard trapezoid? [/list]