Posted by **Annabella Richards** on Sunday, June 12, 2011 at 6:21am.

A cubiod is cut into two triangular prisms by a single cut. Each of the resulting solids has

How many faces?

How many edges?

How many vertices?

- maths -
**MathMate**, Sunday, June 12, 2011 at 8:11am
A cuboid is like a box, so it has f = 6 faces, v = 8 vertices (corners) and e = 12 edges.

You can verify the answer by putting the numbers in the Euler formula:

v + f = e + 2

or

8 + 6 = 12 + 2

14 = 14 (so the answers are probably correct)

Here's a link to the shape of a triangular prism, from which you can deduce the number of faces, edges, and vertices.

- maths -
**MathMate**, Sunday, June 12, 2011 at 8:28am
Sorry, here's the link:

http://mathworld.wolfram.com/TriangularPrism.html

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