Page 86 - NUMINO Challenge_B1
P. 86
3 A square piece of paper is folded three times to form a triangle. Then a
portion of the folded piece of paper is cut out. Shape A is the
remaining piece of unfolded paper. Draw the cutting line on the folded
shape (Shape B).

Shape A Shape B

4 Two right triangles are provided below. If they overlap at one side and
one vertex, how many overlapped portions will form a triangle,
including the ones in the box? (Triangles of the same shape and size
are considered to be the same.)

8 cm 8 cm

8 cm 15 cm

83Geometry
   81   82   83   84   85   86   87   88   89   90   91