Building with solid shapes

We have a box of cubes, triangular prisms, cones, cuboids, cylinders and tetrahedrons. Which of the buildings would fall down if we tried to make them?

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Problem

We have a box of solid shapes. In it there are cubes, triangular prisms, cones, cuboids, cylinders and tetrahedrons.

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Building with Solid Shapes

Which of the buildings below would fall down if we tried to make them? Which ones would be unstable and possibly collapse?

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Building with Solid Shapes