In how many ways can you fit all three pieces together to make shapes with line symmetry?
What size square corners should be cut from a square piece of paper to make a box with the largest possible volume?
Polygons drawn on square dotty paper have dots on their perimeter (p) and often internal (i) ones as well. Find a relationship between p, i and the area of the polygons.
Can you find a general rule for finding the areas of equilateral triangles drawn on an isometric grid?
A circular plate rolls in contact with the sides of a rectangular tray. How much of its circumference comes into contact with the sides of the tray when it rolls around one circuit?
A picture is made by joining five small quadrilaterals together to make a large quadrilateral. Is it possible to draw a similar picture if all the small quadrilaterals are cyclic?