In wonderland, there was a house. Peoples of wonderland came every sunday for party , The house was held by two the big triangle. Theres a base where lead to the lobby. They designed a long stairs to go to the top floor. Same as the other side, but instead of the rest of the buildings two sides. Cubes have to find out the anwser of which part of the house is the saftest and why it dosent need to put two big triangles to the rest of it. What is the Hight of the building must have to makes it look good but hold it steady at the same time? what is the totally amount of numbers that two sides add up together?