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SAI INTERNATIONAL SCHOOL
                                                              Sub: Mathematics

                                                                      Class -IX

                         Ch-8     Quadrilaterals                          Home Assignment -3



               1
                      If two consecutive sides of a rhombus are represented by 3x - 6 and x
                      + 14, then the perimeter of the rhombus is
                               (a) 10        (b) 24         (c) 70        (d) 96
               2      Find the perimeter of a rhombus whose diagonals

                      measure 12 and 16.
                       (a) 10                (b) 20         (c) 40        (d) 80
               3      Which statement is true about all parallelograms?
                           (a) The diagonals are congruent.
                           (b) The area is the product of two adjacent sides.
                           (c) The opposite angles are congruent.
                                        (d) The diagonals are perpendicular to each other.

               4        In the diagram at the right, ABCD is a square, diagonal BD is extended
                        through D to   E.AD = DE and AE is drawn as given in figure. What is mDAE
                        ? (a) 22.5  (b) 45.0       (c) 112.5     (d) 135.0
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