The rotational symmetry has more than one order of rotational symmetry the objects can fit itself within 360 degrees.
Answer: 9
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
The arc length is calculated as
arc = circumference of circle × fraction of circle
= 2πr × 
= 2π × 18 × 
= 36π ×
( cancel 36 and 24 by 12 )
= 3π × 
=
→ C
It is 13.5 Simiply multiply nine times 1 1/2. An easier way to did this might be making one half into a decimal 1.5