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OK, who is correct here?
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03-30-2014, 11:35 AM
Post: #1
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OK, who is correct here?
Take a look at this post and read the comments. Thanks!
https://www.facebook.com/photo.php?fbid=...hoto_reply Ads |
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03-30-2014, 11:46 AM
Post: #2
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Well,
i'm afraid this is out of propos in this forum... michael Ads |
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03-30-2014, 11:48 AM
Post: #3
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16 + 9 + 4 + 1 = 30
The basis must be a square otherwise the whole thing would fall down, not to mention the first wouldn't be supported properly based on the arrangement of the 3 visible ones. |
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03-30-2014, 11:55 AM
Post: #4
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You can only see 16 balls, but assuming a symmetrical, three-dimensional structure, there are 30 balls.
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03-30-2014, 11:56 AM
Post: #5
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It appears to be a three sided pyramid. If so, there are 20 balls.
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03-30-2014, 11:59 AM
Post: #6
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You can see 16 balls in the picture.
Counting the balls that should be present if this picture was a physical pyramid there would be 4^2 + 3^2 + 2^2 + 1 = 30. |
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