10877 - Diceoids

All about problems in Volume 108. If there is a thread about your problem, please use it. If not, create one with its number in the subject.

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mysword
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10877 - Diceoids

Post by mysword » Mon Apr 03, 2006 2:10 pm

what does the "rotation" exactly mean in the problem?
who can explain the sample in the problem description? why say (c) and (d) is in one class?
thx a lot!

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Martin Macko
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Re: 10877

Post by Martin Macko » Sun May 21, 2006 1:00 am

mysword wrote:what does the "rotation" exactly mean in the problem?
who can explain the sample in the problem description? why say (c) and (d) is in one class?
thx a lot!
Here you have the cube (d):

Code: Select all

+-+
|4|
+-+-+-+-+
|5|1|2|6|
+-+-+-+-+
|3|
+-+
Rotating its front side up, you get:

Code: Select all

+-+
|5|
+-+-+-+-+
|3|1|4|6|
+-+-+-+-+
|2|
+-+
then rotating the new front side right, you get:

Code: Select all

+-+
|5|
+-+-+-+-+
|6|3|1|4|
+-+-+-+-+
|2|
+-+
what is equal to the cube (c).

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