Answer:
1260
Step-by-step explanation:
First you will need to find the amount of sides of the polygon:
(After looking it is 9)
Each angle of the side of a nonagon is 140 degrees.
Multiply by 9 since you can make 9 triangles:
140 x 9 = 1260
Answer:
-2.5
Step-by-step explanation:
The one that is like this:^
Answer:
Step-by-step explanation:
-1/2
Answer:
11/42 as a decimal it is 0.2619