Introduction to Special Quadrilaterals

Below you will find a triangle. 1. Adust the triangle however you want.

2. Create a midpoint on one of the sides.

Select the Midpoint or Center tool (the 3rd tool) and click the desired side. (a new point should appear).

3. Create a new triangle by rotating the current one 180

about the midpoint you created.

Select the Rotate around Point tool (the sixth tool) and click the yellow part of the triangle, and then the new midpoint.
A text box should pop up asking for the desired angle and direction. Input 180 and leave counterclockwise selected (Direction doesn't matter in this case).
A new triangle should appear attached to the original one.

4. Add the angles to the new triangle.

Select the Angle tool (the fifth tool) and then click the yellow part of the new triangle.
The three angles should appear (though they may look like just pay attention to the number).

5. Observe the lines and angles. Move the original triangle and see what happens.

Notice

After following the above instructions, name at least 3 things you notice.

Name at least one thing you are wondering about.

If the middle line (the diagonal) between the two triangles was removed, what shape is formed? Be a specific as possible.