Answer:
<u>Final </u><u>solution </u><u>-</u>
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<em>Additional</em><em> </em><em>information</em><em> </em><em>-</em>
★ Angle sum property of triangle states that the sum of all the angles of a triangle equals 180°
★ Angle sum property of quad. ( quadrilateral , any four sided figure ) states that the sum of all the angles of a quadrilateral equals 360°
★ Linear pair of angles are formed when two lines intersect each other at a single point. <u>n </u> number of angles forming a linear pair always have their sum equalling 180°
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hope helpful :D