Page 15 - NUMINO Challenge_A2
P. 15
Investigate 2. Perimeter of Concave Polygons
Making Figures with Matchsticks
A square is made with 12 matchsticks as shown below.
One matchstick is moved and two matchsticks are added to make a
concave polygon (Figure A).
Figure A
The square is changed to make different shapes as shown below. Mark
on matchsticks that are moved, and on matchsticks that are added.
Matchsticks cannot be bent.
12 NUMINO Challenge A2
Making Figures with Matchsticks
A square is made with 12 matchsticks as shown below.
One matchstick is moved and two matchsticks are added to make a
concave polygon (Figure A).
Figure A
The square is changed to make different shapes as shown below. Mark
on matchsticks that are moved, and on matchsticks that are added.
Matchsticks cannot be bent.
12 NUMINO Challenge A2
