Page 1 - HA6
P. 1

SAI International School
                                                      CLASS-VIl

               Mathematics
               CHAPTER-11: Area and Perimeter
               Home Assessment-6




               1) Two cross roads, each of width 10 m, cut at right angles through the centre of a

               rectangular park of length 700 m and breadth 300 m and parallel to its sides. Find
               the area of the roads. Also find the area of the park excluding cross roads. Give the

               answer in hectares.
               2) A picture is painted on a cardboard 8 cm long and 5 cm wide such that there is a

               margin of 1.5 cm along each of its sides. Find the total area of the margin.
               3) Pragya wrapped a cord around a circular pipe of radius 4 cm (adjoining figure)
               and cut off the length required of the cord. Then she wrapped it around a square box
               of side 4 cm (also shown). Did she have any cord left? (π = 3.14)

















               4) In the following figure, find the area of the shaded portion:












               5) Find the area of the quadrilateral ABCD.Here, AC = 22 cm, BM = 3 cm,DN = 3 cm,
               and BM ⊥ AC, DN ⊥ AC.
   1   2