ASVAB · Mental Rotation

A net (unfolded shape) for a triangular prism has two triangles and three rectangles. When folded, the two triangles become which faces of the prism?

Correct answer

The two end caps (bases) of the prism

  1. A The rectangular sides
  2. B The two end caps (bases) of the prism
  3. C The bottom face only
  4. D They disappear into the form

Why this is the answer

A triangular prism has two triangular end caps (the bases) and three rectangular side faces. When the net is folded, the triangles fold up to become the two end caps, and the three rectangles wrap around to form the three side faces. This is the spatial assembly logic the AO subtest tests — identifying which flat shapes become which faces in the assembled three-dimensional form.
Source: ASVAB AO, 3D Net Assembly