5. In a quadrilateral ABCD, ZA + ZD = 180º. Does this mean AB || DC? Why?
special name does this quadrilateral have?
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AZ +ZD =180 °becoz when u draw another diagonal fm B to C which passes through Z form a linear pair.. Is always 180°.
Both the diagonals passes Through Z..
Therefore AB ll CD.. It is a trepezium.
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