Two sides of a quadrilateral are called its opposite sides if they do not have a common end point. In the given figure, (AB, DC) and (AD, BC) are two pairs of opposite sides of quadrilateral ABCD. Two angles of a quadrilateral having a common arm are called its adjacent angles.
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Answer:
Two sides of a quadrilateral are called its opposite sides if they do not have a common end point. In the given figure, (AB, DC) and (AD, BC) are two pairs of opposite sides of quadrilateral ABCD. Two angles of a quadrilateral having a common arm are called its adjacent angles.
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