Answer:
3n^3/16+9
Step-by-step explanation:
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:
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Answer:im sorry this is very confusing
Step-by-step explanation: