Exploring Similar Triangles Task 1

In this exploration you will vary the sides of triangle ABD to produce triangle A'B'D' and answer some questions based on your observations.

Creating similar triangles

Move the blue slider to a value of 0.6 What do you notice about the values of the sides in triangle A'B'D'?

What happens to the angles?

Click on Show Angles and move the blue slider to various values. What do you notice about the measurements of the angles in both triangles (ABD and A'B'D')?