Regular polygons and circles

problem

A Rational Search

Age

16 to 18

Challenge level

3 out of 3

Investigate constructible images which contain rational areas.
project
Flip Your Mat!

7 to 14

1 out of 3

What shape and size of drinks mat is best for flipping and catching?
article
Using GeoGebra

Never used GeoGebra before? This article for complete beginners will help you to get started with this free dynamic geometry software.