An angle of a Quadrilateral measures five third of a right angle and other three angles are equal .Find the measure of each of the equal angles.
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An angle of a quadrilateral measures five-third of a right angle and other three angles are equal.Find the measure of each of the equal angles.
Expert Answer:
Let x be one the three equal angles.
Sum of all the angles of a quadrilateral = 360°
⇒ x + x + x + 120°= 360°
⇒ 3x = 360° -120°
⇒ 3x = 240°
⇒ x = 80°
Thus, the measure of each of the equal angle is 80°
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