IB Maths Resources from Intermathematics
IB Maths Resources: 300 IB Maths Exploration ideas, video tutorials and Exploration Guides
Circular inversions II There are some other interesting properties of circular inversions. One of which is that they preserve the "angle" between intersecting circles. Firstly, how can circles have an angle between them? Well, we draw 2 tangents to both the circles at the point of intersection, and then measure the angle between the 2... Continue Reading →
Circular Inversion - Reflecting in a Circle This topic is a great introduction to the idea of mapping - where one point is mapped to another. This is a really useful geometrical tool as it allows complex shapes to be transformed into isomorphic (equivalent) shapes which can sometimes be easier to understand and work with... Continue Reading →