Similar Triangles

Play with the area of different sized triangles by clicking on the "Triangles" at the top of this shape activity. Change the shape of the triangle to make similar figures, then add the dimensions to the table. Record what patterns you see with the area as you increase the triangle by a scale factor of x2 or x3.

BrainPop

1. Log in.

2. Search for the movie on "Similar Triangles"

3. Afterward click "Play the Quiz"

Choose "Review Quiz" and answer the questions.

4. If you end early, search for the movie on "Proportions" and play the quiz, then the one on "Ratios".