The measure s of two angles of a quadrilateral are 110 degree and 140 degree. If the other two angles are equal, find the equal angles in degree.
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Explanation:
sum of angles of a quadrilateral = 360°
110°+140°+x+x=360°
250°+2x=360°
2x=360°-250°
2x=110°
x=110/2
x=55°
∴ The other two angles measure 55° each
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