Objectives

• Classify quadrilaterals by angles
• Classify quadrilaterals by sides
• Draw specified quadrilaterals using ruler and protractor
• Find unknown angle measures in given quadrilaterals

Vocabulary

Quadrilateral

closed figure with four sides and four vertices.

Trapezoid

Quadrilateral with one pair of opposite sides parallel.

Rectangle

Parallelogram with four right angles.

Parallelogram

Quadrilateral with opposite sides congruent and parallel.

Square

Four congruent sides and four congruent angles.

Rhombus

Parallelogram with four congruent sides.

Parallel

lines that are equidistant apart and will never intersect

Congruent

exactly the same, having the same measure