Transformations on a Pegboard

Stage: 2 Challenge Level: Challenge Level:1

Using a pegboard would be helpful, or if you don't have one, try using squared paper or this interactive geoboard.
What are the properties of a right-angled triangle?
Which peg have you tried to move?
Can you make the shape by moving a different peg instead?
Are there any other ways to do it?

Published July 2003,August 2003.