Can you describe this route to infinity? Where will the arrows take you next?
Use the clues about the symmetrical properties of these letters to place them on the grid.
Stick some cubes together to make a cuboid. Find two of the angles by as many different methods as you can devise.
A tilted square is a square with no horizontal sides. Can you devise a general instruction for the construction of a square when you are given just one of its sides?
Draw some isosceles triangles with an area of $9$cm$^2$ and a vertex at (20,20). If all the vertices must have whole number coordinates, how many is it possible to draw?
These points all mark the vertices (corners) of ten hidden squares. Can you find the 10 hidden squares?
Some treasure has been hidden in a three-dimensional grid! Can you work out a strategy to find it as efficiently as possible?
