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Ymorist [56]
3 years ago
8

PLEASE!!!

Mathematics
1 answer:
garik1379 [7]3 years ago
5 0
We see on the picture that :
When we go down one row, we add one horizontal and two diagonal cards.

In the first row we have 2 cards
In the second 2+3=5 cards
In the third 5+3=8 cards
etc.

General formula : in the n-th row from the top, we have\boxed{ 2+(n-1)\cdot3\text{ cards}}
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