​Classify Quadrilaterals: Right Angles

About Geometry Worksheet Assignment 3.20:     

 

Assignment 3.20 is an introduction to classification of quadrilaterals by right angles.

 

Prerequisite Skills: Identify right angles (Assignment 2.10).  Identify congruent line segments (Assignment 1.15).  

 

Definitions:  A quadrilateral with four right angles is a rectangle. 

                           A parallelogram with a right angle is a rectangle.​​​

                           A quadrilateral with four right angles and four congruent sides is a square.

                           A rhombus with a right angle is a square.

                           A rectangle with four congruent sides is a square.