Sum of interior angles in a triangle
1. Record the measures of angles A, B, and C and the sum of the 3 angles[br]2. Repeat this process 3 times.
Classifying Triangles by Sides or Angles
1. Click the "Angles" Box.[br]2. Record the definition (in your own words) of triangles defined by their angles[br]3. Move the slider "n" and drag points A, B, or C to try and construct the four different types of triangles.[br]4. Un-click the "Angles" box and click the "Sides" box.[br]5. Record the definition (in your own words) of triangles defined by their sides.[br]6. Move the slider "k" and drag points A, B, or C to try and construct the three different types of triangles.