Page 32 - TB_5B
P. 32
Place regular polygons around 1 point using transformation.
If the sum of the interior angles of polygons is 360 , it can be used to make a
tessellation.
60 108 108
60 60 108
60 60
60
The sum of interior angles of The sum of interior angles of
each equilateral triangle 180 each regular pentagon 540
1 angle 180 3 60 1 angle 540 5 108
60 6 360 108 3 324 , 108 4 432
Since the sum of the interior Since the sum of the interior angles
angles is 360 , a tessellation can cannot be 360 , a tessellation
be made. cannot be made.
19. The World of Patterns 21
If the sum of the interior angles of polygons is 360 , it can be used to make a
tessellation.
60 108 108
60 60 108
60 60
60
The sum of interior angles of The sum of interior angles of
each equilateral triangle 180 each regular pentagon 540
1 angle 180 3 60 1 angle 540 5 108
60 6 360 108 3 324 , 108 4 432
Since the sum of the interior Since the sum of the interior angles
angles is 360 , a tessellation can cannot be 360 , a tessellation
be made. cannot be made.
19. The World of Patterns 21
