In the adjoining figure, ABCD is a quadrilateral. (i) How many pairs of adjacent sides are there?

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In the adjoining figure, ABCD is a quadrilateral.
(i) How many pairs of adjacent sides are there?
Name them.
(ii) How many pairs of opposite sides are there?
Name them.
(iii) How many pairs of adjacent angles are there? Name them.
(iv) How many pairs of opposite angles are there?
Name them.
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