Emptied Cube

Weekly Problem 26 - 2015
What are the volume and surface area of this 'Cubo Vazado' or 'Emptied Cube'?
Exploring and noticing Working systematically Conjecturing and generalising Visualising and representing Reasoning, convincing and proving
Being curious Being resourceful Being resilient Being collaborative

Problem



The sculpture 'Cubo Vazado' [Emptied Cube] by the Brazilian artist Franz Weissmann is formed by removing cubical blocks from a solid cube to leave the symmetrical shape shown.

Image
Emptied Cube


If all the edges have length $1$, $2$ or $3$ units, what is the volume of the sculpture and what is its surface area?

If you liked this problem, here is an NRICH task that challenges you to use similar mathematical ideas.