Page 134 - NUMINO Challenge_M1
P. 134
How many line segments of different lengths are there in the
figure below?
3 cm 2 cm 1 cm 4 cm
Key Point
There are a total of 10
line segments.
There is a dot board with evenly spaced Example
dots. Draw all the possible triangles on the
given dot board as shown in the example.
Note that figures that overlap when turned
or flipped are considered the same.
Key Point
and
overlap when they are
turned or flipped, so
they are the same.
Geometry 131
figure below?
3 cm 2 cm 1 cm 4 cm
Key Point
There are a total of 10
line segments.
There is a dot board with evenly spaced Example
dots. Draw all the possible triangles on the
given dot board as shown in the example.
Note that figures that overlap when turned
or flipped are considered the same.
Key Point
and
overlap when they are
turned or flipped, so
they are the same.
Geometry 131
