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प्रश्न
One angle of a six-sided polygon is 140o and the other angles are equal.
Find the measure of each equal angle.
बेरीज
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उत्तर
Let the measure of each equal angles are x.
Then we can write
140° + 5x = ( 2 x 6 - 4 ) x 90°
140° + 5x = 720°
5x = 580°
x = 116°
Therefore the measure of each equal angles are 116°
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