# A dozen into six rows?

You were given 12 coins by your friend. He bet that if you could arrange these dozen coins into 6 rows of 4 coins such that it makes two similar shapes, he will give you 12 more coins. How will you do it?

• Both Jonthemon's answer and Deusovi's seem correct. – Spacemonkey Aug 17 '15 at 16:38
• Do the shapes have to be enclosed? – Eric Aug 17 '15 at 18:15

Black are the coins, green are the rows of 4, red is the similar shape.

• @jonthemon The image looks like the answer to me, and after some looking I can see the 6 rows. But I suggest you modify it to highlight the six lines of 4 coins, instead of the two hexagons. – AJFaraday Aug 17 '15 at 15:22
• Isn't that only 5 rows? – Kingrames Aug 18 '15 at 11:50
• no, 6 green lines for the 6 rows. You can easily see it without the lines by only counting one row per corner of the hex, ending every other corner. 6 corners = 6 lines. – Spacemonkey Aug 18 '15 at 19:10

You arrange them into...

a star of David, with each point and intersection having a coin.

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