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Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Maths: Geometry: Points, Lines and Angles
Author

Texas Instruments
Level

9-12
Activity Time

15 Minutes
Device
- TI-Nspire™ Navigator™
- TI-Nspire™
- TI-Nspire™ CAS
Software

TI-Nspire™
TI-Nspire™ CAS
TI-Nspire Version

2.0
Accessories

TI Connectivity Cable
Unit-to-Unit link cables
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Vertical and Adjacent Angles

Activity Overview

In this introductory or review activity, students will explore vertical and adjacent angles. They will define and identify pairs of angles. Then they will change the intersecting lines of a geometric model to make conjectures about the relationships of the pairs of angles.

Key Steps

In Problem 1, students begin their exploration of vertical angles. Students will move points on the intersecting lines to discover the properties of vertical angles and make a conjecture.
In Problem 2, students will investigate adjacent angles constructed from two intersecting lines and make a conjecture.

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Vertical and Adjacent Angles

Activity Overview

Key Steps

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