How many pairs of congruent sides are there in an isosceles triangle?
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. (v) How many diagonals are there? Name them.
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?