A simple guide on how to show the angles in triangle add up to 180 degrees, aimed at students aged 11 to 14.

A simple, step-by-step guide showing how to draw a regular hexagon, square and triangle, aimed at children between the ages of 11 and 14.

However, Google Earth does not have an option to draw circles. There are a number of tools on the web that will create a circle, given the coordinates of the centre and a radius, but in this case ...