PQ is- (a) 5 cm (c) 2 cm (xi) The figure formed by joining the mid points of the adjacent sides of a paral- lelogram is a- (a) rhombus (b) square (c) rectangle (d) parallellogram (xii) The figure formed by joining the mid points of the adjacent sides of a parallelogram is a. (a) rhombus (xiii) The (c) rectangle quadrilateral is- (a) 350° (c) 180° 12. Fill in the blanks : Mathematics (b) 10 cm (d) None of these (b) square (d) parallellogram sum of the angles of a (ii) (b) 360° (d) 390° A quadrilateral has vertices. (ii) Length of all sides of a square is. (iii) Sum of any pair of consecutive B. angles of a parallelogram is 1. - (iv) Opposite sides of a parallelogram are (v) Each angle of a rectangle is (vi) Diagonals of a quadrilateral bisect each other at the right angles, then it is a Foun (vii) The sum of either pair of opposite angles of a quadrilateral is_ Say true (T) or False (F): (i) Sum of the four angles of a quadri- ! lateral 360º. 5. (iii) If all the angles of a quadrilateral are equal it is a parallelogram. 2. In a parallelogram, the diagonal are j equal. 3. 4. 5. (iv) A trapezium has only one pair of I parallel sides. 16​