by Jordan.S

This is my my extension maths shape.

It has 4 lines of symmetry.

2 are diagonal and like an X, and two are going through the middle like a plus because if you fold it diagonally or half way through then it is the same

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In fractions 4/13 is green, 5/13 is orange and 4/13 is tan

If you add 4+4+5 it equals 13