Education Technology

Triangle Sides & Angles

Subject Area
Math: Geometry: Triangles
Level
9-12
Activity Time
40 Minutes
TI Calculator
TI-Nspire™ CX series
TI-Nspire™ CX CAS/CX II CAS
TI-Nspire Version
3.2
Other Materials
By Karen Campe
Resource Types
Lessons
Format
TNS

Triangle Sides & Angles

Activity Overview

Students will explore side and angle relationships in a triangle. First, students will discover where the longest (and shortest) side is located relative to the largest (and smallest) angle. Then, students will explore the Isosceles Triangle Theorem and its converse. Finally, students will determine the number of acute, right, or obtuse angles that can exist in any one triangle.

Subject Area
Math: Geometry: Triangles
Level
9-12
Activity Time
40 Minutes
TI Calculator
TI-Nspire™ CX series
TI-Nspire™ CX CAS/CX II CAS
TI-Nspire Version
3.2
Other Materials
By Karen Campe
Resource Types
Lessons
Format
TNS
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