Education Technology

Measuring Angles in a Quadrilateral

Subject Area
Math: Geometry: Quadrilaterals
Level
9-12
Activity Time
45 Minutes
Software
TI Connect™ CE
TI Calculator
TI-84 series
Resource Types
Lessons

Measuring Angles in a Quadrilateral

Activity Overview

Students determine the sum of the interior angles of a quadrilateral.

About the Lesson

Students will find the sum of the interior angles of their quadrilateral. Then, they will move vertices to change the angle measures and find the sum again. Students should find that the sum of the interior angles of a quadrilateral is always 360 degrees.

Students will create a new Cabri Jr. file. (no file for download)

Subject Area
Math: Geometry: Quadrilaterals
Level
9-12
Activity Time
45 Minutes
Software
TI Connect™ CE
TI Calculator
TI-84 series
Resource Types
Lessons
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