**Rectangle**: A quadrilateral with four congruent angles, all of which are equal to 90ยบ.

Resources for this term:

Finding Equations of Parallel and Perpendicular Lines

Students identify parallel and perpendicular lines and find points of intersection and x- and y-intercepts by looking at the equations of the lines.

Evaluating Statements about Length and Area

Students critique conjectures about length and area and construct examples and counter-examples to refute or justify them.