10. If a polygon has nine sides, what is the sum of its interior angle?
A. 1260°
B. 1440°
C. 1080°
D. 1620°
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10. If a polygon has nine sides, what is the sum of its interior angle?
A. 1260°
B. 1440°
C. 1080°
D. 1620°
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Answer:
1) D ---------------------):)