Education Technology

The Hinge Theorems

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
3.0
Other Materials
By Karen Campe
Resource Types
Lessons
Format
TNS

The Hinge Theorems

Activity Overview

Students will explore the inequality relationships that arise when some of the triangle congruence conditions are in place but others are not. The SAS Inequality Theorem and the SSS Inequality Theorem are often referred to as the Hinge Theorem and its converse. These two theorems concern inequalities involving the sides and angles of two triangles.

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
3.0
Other Materials
By Karen Campe
Resource Types
Lessons
Format
TNS
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