# Move the vertices and record the lengths of DF and AC. Look for any invariants

## Move Vertex B, is the angle measurement an invariant?

## Move Vertex B, is the sum of AB and BC an invariant?

## Move Vertex B, is the perimeter if ABC an invariant?

## Move Vertex B, is the area of ABC an invariant?

## Move Vertex B, is the sum of the angle measures an invariant?

## Move the vertices and record the lengths of DF and AC. Look for any invariants

## Move point D around the circle. What invariant is shown?

## New Resources

## Discover Resources

Download our apps here: