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question how many sides does a regular polygon have if each interior an…

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how many sides does a regular polygon have if each interior angle measures 168°?
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Explanation:

Step1: 求外角角度

多边形内角与外角互补,已知内角为\(168^{\circ}\),则外角为\(180 - 168=12^{\circ}\)。

Step2: 利用多边形外角和求边数

多边形外角和为\(360^{\circ}\),设边数为\(n\),根据公式\(n=\frac{360}{\text{外角角度}}\),可得\(n = \frac{360}{12}\)。

Step3: 计算边数

\(n=\frac{360}{12}=30\)。

Answer:

\(30\)