### Brain Teasers

# 6 = V of a R O

Letter-Equations
Letter Equations are well known phrases or facts where the key words have been replaced with the first letter of that word. These are often in the form of an equation, which contain a number, an = sign and the rest of the obscured phrase or fact.

6 = V of a R O

### Hint

It's a common geometric shape. It is called an O because it has 8 F's.### Answer

6 = vertices of a regular octahedron.It is called an octahedron because it has 8 faces. Although there are more than one type of octahedra, the most symmetric one, the regular octahedron, has 6 vertices.

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