Chapter 1 Understanding LEGO® Geometry

Before we learn LEGO, it's very important to have basic geometric properties of the LEGO bricks such as brick's different shapes and sizes. LEGO brick's size and shapes are based on the their measurement, which expressed with three different numbers, width, length, and height. This represented in coordinates form. In LEGO robotics, there is a brick that called TECHNIC brick, which has measurement of 1 x N (any number) and this brick can be connected by its hole which are inside of them, and this is called LEGO beam. We use Pythagorean theorem to figure out the number of hole that are required. Pythagorean theorem is A²+B²=C² where C is hypotenuse. For example, if a right-angled triangle has 6 holes as its opposite and 8 holes as its adjust, then we can use a beam which has 10 holes as a diagonal beam, it's because 6²+8² equals to 10². Although the the shape of liftarms differ in their shape, it also connect many LEGO part.