A quadrilateral has _ sides.
Fill in the blanks : (i) A quadrilateral has ___ sides. (ii) A quadrilateral has ___ angles. (iii) A quadrilateral has ___ vertices, no three of which are ___. (iv) A quadrilateral has ___ diagonals. (v) A diagonal of a quadrilateral is a line segment that joins two ___ vertices of the quadrilateral. (vi) The sum of the angles of a quadrilateral is ___.
Complete the following:
(a) A quadrilateral has ____________ sides.
(b) A quadrilateral has ____________ diagonals.
(c) A quadrilateral in which one pair of sides are parallel to each other is ____________.
(d) In an isosceles trapezium, the base angles are ____________.
(e) In a rhombus, the diagonals bisect each other in ____________ angles.
(f) In a square, all the sides are ____________.