I have used these Pythagorean theorem task cards two years in a row now in my classroom. They work great when trying to small group teach. Students can be grouped into pairs and go through the task cards together. Answers are provided on the back of each task card (when printed back to back), to ensure students are on the right track.
Students have to find the missing side on 9 triangles and then either find the perimeter or area of the triangle.
These are the same task cards as my other Pythagorean task cards, but they are full sheets of paper.