This activity explores the various relationships of the angles of a triangle. It starts with an interior angle and its corresponding exterior angle.
Then the sum of the interior angles. Finally, the relationship between one exterior angle and its remote interior angles. The students are provided with a worksheet to write data and make conjectures.
The activity also comes with a document for the handheld to help walk the students through the activity.
During the Activity
One file is the nSpire document to be loaded onto the calculator. The second document is a word document to give the students space to show work and make conjectures. A PDF is also provided.