GraphicMaths

PDF printable illustrates various types of tessellations and explains why only three regular polygons tessellate.

Three page PDF illustrating important facts about circle geometry using bright, clear diagrams. Topics covered include the the inscribed angle in a circle, the angle subtended by an arc at the centre of a circle, and the inscribed angle in a semicircle. The pages each cover a single topic, and can be printed and used individually.