Answer:a=10
Step-by-step explanation:
I don’t know how to explain this in detail but I hope these notes and work help you.
Answer is 2
Step by step exploration
2+1.25f=10-2.75f
1.25f+ 2.75f=10-2
4f=8
f=2
Sum of all exterior angles = 360°
Size of one exterior angle = 40°
Number of sides = 360 ÷ 40 = 9
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Answer: There are 9 sides to this polygon.
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