You may also like

problem icon

Cushion Ball

The shortest path between any two points on a snooker table is the straight line between them but what if the ball must bounce off one wall, or 2 walls, or 3 walls?

problem icon

Grid Points on Hyperbolas

Find a condition which determines whether the hyperbola y^2 - x^2 = k contains any points with integer coordinates.

problem icon


This is a beautiful result involving a parabola and parallels.

Napoleon's Hat

Stage: 5 Challenge Level: Challenge Level:1
One possibility is to use coordinates. You need to use the coordinatesof the centroids of the triangles.