In a parallelogram, how many pairs of opposite sides are parallel?
There are 2 pairs of opposite sides in a parallelogram.
In the figure, ABCD is a quadrilateral. (i) Name a pair of adjacent sides. (ii) Name a pair of opposite sides. (iii) How many pairs of adjacent sides are there? (iv) How many pairs of opposite sides are there?
(v)Name a pair of adjacent angles. (vi) Name a pair of opposite angles. (vii) How many pairs of adjacent angles are there? (viii) How many pairs of opposite angles are there?