Education Technology

Investigating Triangles and Congruence

Subject Area
Math: Geometry: Triangles
Level
9-12
Activity Time
50 Minutes
TI Calculator
TI-Nspire™ CX series
TI-Nspire™ CX CAS/CX II CAS
TI-Nspire Version
3.0
Resource Types
Lessons
Format
TNS

Investigating Triangles and Congruence

Activity Overview

The main purpose for this activity is to explore triangles with pairs of corresponding congruent sides and a congruent nonincluded angle.

Before the Activity

Students should have an understanding of Angle-Side-Angle (ASA) Congruence Postulate and the Angle-Angle-Side (AAS) Congruence Theorem.

During the Activity

See attachments.

After the Activity

At the end of this activity, students should be able to see why SSA can NOT be used to prove two triangles are congruent.

Subject Area
Math: Geometry: Triangles
Level
9-12
Activity Time
50 Minutes
TI Calculator
TI-Nspire™ CX series
TI-Nspire™ CX CAS/CX II CAS
TI-Nspire Version
3.0
Resource Types
Lessons
Format
TNS
iPad is a trademark of Apple Inc., registered in the U.S. and other countries.
Vernier EasyData,Vernier EasyLink and Vernier EasyTemp are registered trademarks of Vernier Science Education.