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प्रश्न
Three angles of a seven-sided polygon are 132o each and the remaining four angles are equal. Find the value of each equal angle.
उत्तर
Let the measure of each equal angles are x.
Then we can write:
3 × 132° + 4x = (2 × 7 - 4) 90°
4x = 900° - 396°
4x = 504°
x = `(504°)/4`
x = 126°
Thus the measure of each equal angles are 126°.
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