Page 84 - NUMINO Challenge_C2

Problem solving Key Points

1 A piece of paper is folded such that the number Find the lines that
3 is on top. If the piece of paper is punctured as meet when the
shown below, draw the shape of the unfolded piece of paper is
piece of paper. folded and then
draw the punctured
hole.

12345 3
6 7 8 9 10

12345
6 7 8 9 10

2 A piece of paper is folded such that the number Find the lines that
3 is on top. If the colored portion is cut out, draw meet when the piece
the shape of the unfolded piece of paper. of paper is folded
and then draw the
cut-out portions.

12 34 56 7 3

12 34 567

81Geometry