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Find the Number of Side of a Regular Polygon, When of Its Angle Has a Measure of 150° . - Mathematics

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प्रश्न

Find the number of side of a regular polygon, when of its angle has a measure of 150° .

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उत्तर

\[ \text{ Each interior angle } = \left( \frac{2n - 4}{n} \times 90 \right)^° \]

\[So, \left( \frac{2n - 4}{n} \times 90 \right)^° = 150° \]

\[ \Rightarrow \frac{2n - 4}{n} = \frac{150° }{90° }\]

\[ \Rightarrow \frac{2n - 4}{n} = \frac{5}{3}\]

\[ \Rightarrow 6n - 12 = 5n\]

\[ \therefore n = 12\]

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 16: Understanding Shapes-II (Quadrilaterals) - Exercise 16.1 [पृष्ठ १७]

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आरडी शर्मा Mathematics [English] Class 8
अध्याय 16 Understanding Shapes-II (Quadrilaterals)
Exercise 16.1 | Q 18.5 | पृष्ठ १७

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