The opposite sides of a dice cube always add up to seven.

## 4 thoughts on “Lucky Seven”

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# Lucky Seven

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4 thoughts on “Lucky Seven”

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The opposite sides of a dice cube always add up to seven.

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AWSOME!! – thats awsome, I never really thought about that…

No offence – No offence, but anyone having done Year Eight Mathematics and having passed it, would know that already.

actually… – Actually, on any die, the opposite sides add up to one more than the highest number on the die. My brother has three-sided, 8, 20, and 100. this is true for each one.

Um… – How can you possibly have a 3-sided…anything? That’s like having a 2-sided 2-D shape or a 1-ended line segment. Assuming the die is 3-D, one would assume the die would have to be at least 4-SIDED. Also, a 100-sided die would have to be pretty wierd, because not all of the faces would be the same shape and size, so certain numbers would be more likely to come up than others (unless it is carefully weighted). The only 3-D “regular” shapes are called the Platonic Solids, and they are the tetrahedron (4 regular triangles, aka euilateral triangles), the hexaheron aka the cube (6 regular quadrilaterals, aka squares), the octahedron (8 regular triangles, aka equilateral triangles), the dodecahedron (12 regular pentagons), and the isosahedron (20 regular triangles, aka equilateral triangles).