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This task is stumped Australian high school students

Australian high school students during a national testing tossed task of geometry, put most of the students in a deadlock. In social networks rose Bucha: they say, why make such mozgolomnye job in the exam. And you little to solve?





Condition:

50 cents coin has facets 12 of equal length. Two coins put close to each other on a table as shown in the picture.





We need to find the angle X
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...
Take a brush, turn it over with the back side. The result is worthy of the best galleries in the world!
...
Museum of Historic Vehicles
...
A clever logic problem that has broken the brain of more than one smart person, try to solve
...
Children's questions, keeping an impasse: how to respond
...
A school problem with a catch for those who want to strain the gyrus on a languid winter evening
...
The problem of a wise man who bought and sold a cow, for those who want to test their intelligence
...
Mathematical warm-up found in an old written notebook in the attic
...
Deadlock metro line
...
Dog Breeds Part 1
...
In Russia intend to abolish homework for high school students
...
Interesting facts about the Atlantic deadlock
...
Dolce Vita: the most expensive food world
...
In Australia will be installed at all municipal buildings solar panels
...
Wildlife Australia
...
Simple coffee problem to remember math teacher with gratitude
...
A savvy task to remember a math teacher with an unevil, quiet word
...
Amazing facts about intuition cats.
...
Mathematical problem for which an elderly teacher strokes the head
...
The task of the 165-year-old is haunted mathematicians
...
How in 1958 the successes of a high school student from the United States and a Soviet schoolboy were compared
...
William Buckley in the era of his "reign".
...
An elementary problem for those who have been friends with mathematics since childhood
...
Five children's puzzles, which are introduced into a stupor adults
...
As voted for Serduchka (list)
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