Classification of Polygons on the Basis of Number of Sides / Vertices
One angle of ...
Question
One angle of a six-sided polygon is 140∘ and the other angles are equal. Find the measure of each equal angle.
A
116∘
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B
126∘
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C
112∘
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D
118∘
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Solution
The correct option is A116∘ One angle of a six-sided polygon is 140o and the other angles are equal. n = 6 Sum of interior angles of a polygon of 6 sides =180(n−2)=180(6−2)=720 => 140o+5×x=720o => 5×x=580o => x=116o Each equal angle is 116o.