You may also like

problem icon

Three Cubes

Can you work out the dimensions of the three cubes?

problem icon

When the Angles of a Triangle Don't Add up to 180 Degrees

This article outlines the underlying axioms of spherical geometry giving a simple proof that the sum of the angles of a triangle on the surface of a unit sphere is equal to pi plus the area of the triangle.

problem icon

The Spider and the Fly

A spider is sitting in the middle of one of the smallest walls in a room and a fly is resting beside the window. What is the shortest distance the spider would have to crawl to catch the fly?

Changing Areas, Changing Volumes

Stage: 4 Challenge Level: Challenge Level:1

Well done to Philip from Wilson's School who submitted this solution.