Test: Visualising Solid Shapes- 1 - CAT MCQ

An octagon is a polynomial with eight sides.

An octagonal prism will have two octagonal faces i.e. a total of 8 × 2 = 16 sides as edges.

And additionally all eight corners of one octagon will be connected to eight corners of other octagon, forming 8 edges.

Hence total number of edges of an octagonal prism will be 16+8=24.

A line segment formed where two edges meet. A cube has 12 edges. Because all faces are squares and congruent to each other, all 12 edges are the same length.

A hemisphere has 1 face which is the circular edge.

A square pyramid is a pyramid with a square base. So it has 4 triangular faces and 1 square base.

A pyramid is a polyhedron that has only one base. (The base is the "bottom" of the Egyptian pyramids.) The other faces are all congruent triangles, and they share a common vertex, which is the top point.