This LOGO challenge starts by looking at 10-sided polygons then generalises the findings to any polygon, putting particular emphasis on external angles

Thinking of circles as polygons with an infinite number of sides - but how does this help us with our understanding of the circumference of circle as pi x d? This challenge investigates. . . .

This is the second in a twelve part introduction to Logo for beginners. In this part you learn to draw polygons.

These pictures were made by starting with a square, finding the half-way point on each side and joining those points up. You could investigate your own starting shape.

The ancient Egyptians were said to make right-angled triangles using a rope with twelve equal sections divided by knots. What other triangles could you make if you had a rope like this?

Use the isometric grid paper to find the different polygons.

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

Make an estimate of how many light fittings you can see. Was your estimate a good one? How can you decide?

How many different shaped boxes can you design for 36 sweets in one layer? Can you arrange the sweets so that no sweets of the same colour are next to each other in any direction?

What happens if you join every second point on this circle? How about every third point? Try with different steps and see if you can predict what will happen.

Can you cut a regular hexagon into two pieces to make a parallelogram? Try cutting it into three pieces to make a rhombus!

Sally and Ben were drawing shapes in chalk on the school playground. Can you work out what shapes each of them drew using the clues?

Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?

Draw three straight lines to separate these shapes into four groups - each group must contain one of each shape.

This investigation explores using different shapes as the hands of the clock. What things occur as the the hands move.

Given a 2 by 2 by 2 skeletal cube with one route `down' the cube. How many routes are there from A to B?

An environment that enables you to investigate tessellations of regular polygons

Explain how the thirteen pieces making up the regular hexagon shown in the diagram can be re-assembled to form three smaller regular hexagons congruent to each other.