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kari74 [83]
3 years ago
15

A pentomino is made up of five squares where two squares are joined along an entire side. Two pen- tominos are the same if they

can be matched by turning or flipping. How many different pentomino shapes are possible?

Mathematics
1 answer:
Studentka2010 [4]3 years ago
5 0

There are 12 such shapes. One can start with two squares, adding squares around the edge and rejecting shapes that have been previously seen. Repeating until you have 5 squares results in 12 distinct shapes.

_____

2 shapes are possible with 3 squares: L, I

5 shapes are possible with 4 squares: L, I, N, T, O

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