Investigate Pythagoras' Theorem and its application to solving simple problems involving right angled triangles

1. Triangular scales: Calculate length of the side of a right-angled triangle, given ratio
2. Triangularea- area of triangle in circle
3. What's In The Box? - perimeter of a rectangle; Pythagoras
4. Comfy Corner - perimeter of a right-angled triangle; Pythagoras
5. Shape Up! 6 - triangle geometry, equilateral and isosceles
6. Shape Up! 2 - deduce type of triangle