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- 1 2
3 4
5 6
- 3
7 8
9 10
11 Lock units together
- 12 Make 30 units and 13 Top view when you
join 3 units in each point cut 1 cm off the top
14 Each half of each unit is joined to 2 other units
The other half is joined to 2 more units
The central points on one side of the joined units all meet in one point
Together five units form a pentagon
The shaded areas are part of the adjacent pentagons
nguon tai.lieu . vn