Try B, hope that helps :)
the answer is 16 because .80 times 20 is 16
Answer:
36 degrees
Step-by-step explanation:
Subtract 54 from 90
Answer:
The number of sides the polygon have 9
Step-by-step explanation:
Given in question as :
For The circle , the central angles measure be 40 °
Let the number of sides of polygon = n
Now . as we know
External angle = 
Or , 40° =
Or,
= 40°
Or,
= 40°
So, n =
= 9
Hence The number of sides the polygon have 9 Answer