top of page
Geometry worksheet to help students identify quadrilaterals that are trapezoids, name parallel sides of trapezoids, and name bases and legs of trapezoids.

Activity 3.8​

​Assignment 3.18

​Classifying Quadrilaterals: Parallel Sides

 
Objectives

Name parallel sides of quadrilaterals.

 

Classify trapezoids and parallelograms by the number of pairs of parallel sides. 

 

Identify and name the bases and legs of trapezoids.

 

 

 
 
 

Assignment 3.9

​​Previous
​​Next
Geometry worksheet to help students identify quadrilaterals that are parallelograms, name the parallel sides of parallelograms, and classify quadrilaterals that are trapezoids and parallelograms.

About Geometry Worksheet Assignment 3.18:     

 

Assignment 3.18 is an introduction to classification of quadrilaterals by parallel sides.

 

Prerequisite Skills: Name sides of polygons (Assignment 3.1).  Name angles (Assignmentt 2.4).  Identify parallel line segments (Assignment 1.6).  

 

Definitions:  A quadrilateral with exactly one pair of parallel sides is a trapezoid.  The parallel sides of a trapezoid are the bases.  The non-parallel sides are

                           the legs.  Pairs of angles with vertices at the endpoints of a base are base angles.

 

                           A quadrilateral with two pairs of parallel sides is a parallelogram.​​​​​​​​​

 

bottom of page