e.g., a shape will be called a triangle if it looks like an equilateral triangle with a horizontal base – all others are considered ‘wrong’ 1. Ask "What is a triangle?". 2. Using Sketchpad, create a ...

An understanding of how to use Pythagoras’ theorem to find missing sides in a right-angled triangle is essential for applying the theorem in different contexts. (3,1) is the coordinate that is 3 ...