Page 119 - Revised Maths Wisdom Class - 6
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Perimeter and Area                                                                                       117

          4.  The length of a rectangle is thrice its breadth. Find the area of the rectangle _________.
          5.  Perimeter of a square of side 4.5 cm is _________ cm.


         D  Write ‘t’ FOr true and ‘F’ FOr False stateMents Write ‘t’ FOr true and ‘F’ FOr False stateMents

          1.  The perimeter of an equilateral triangle = 3 × side.

          2.  If the perimeter of a regular hexagon is 12 cm, its side is 2 cm.
          3.  The perimeter of square whose are is 16 cm  is 10 cm.
                                                      2
          4.  If the side of a square is doubled, the perimeter of the square is halved.
          5.  The breadth of a rectangle of area  64 cm  and length 8 cm is 4 cm.
                                                    2

         E  Case study Based QuestiOns Case study Based QuestiOns
           Jiya has a field with a flower bed and grass land.
         The  grass land  is  in  the  shape  of  rectangle  while
         flowerbed is in the shape of square. Total area of the
         whole land is 1260 m  and the widths of grassland
                              2
         and flower bed are same as 15 m.

           Read the above paragraph carefully and answer
         the following questions:
                                                                           Grass                      Flower Bed
          1.  What is the area of grassland?
            (a) 1035 m                (b)  1360 m             (c) can’t be determine  (d) 1260 m 2
                       2
                                                 2
          2.  What will be the perimeter of the grassland?
            (a) 69 m                  (b)  15 m               (c) 168 m               (d) 130 m
          3.  What is the total perimeter of  Field?
            (a) 124 m                 (b)  150 m              (c) 198 m               (d) 212 m
          4.  What is the area of flower bed?

            (a) 225 m                 (b)  15 m               (c) 168 m               (d) 212 m 2
                      2
                                              2
                                                                        2
         F  assertiOn-reasOn Based QuestiOns assertiOn-reasOn Based QuestiOns
         Directions for Questions 1 to 2:  In each of the questions given below, there are two statements marked as
         Assertion (A) and Reason (R). Mark your answer as per the codes provided below:
          (a)  Both A and R are true and R is the correct explanation of A.

          (b)  Both A and R are true but R is not the correct explanation of A.
          (c)  A is true but R is false.                      (d)  A is false but R is true.
        Q. 1.  Assertion (A):  The perimeter of a square of side 5cm is 25.

              Reason (R):  The standard unit of length is meter.
        Q. 2.  Assertion (A):  Perimeter of a rectangle = 2 (L + B).
              Reason (R): Perimeter refers to the boundary that surrounds a closed figure.
        Q. 3.  Assertion (A):  Perimeter of square = 4 ×  side : Area = side × side.

              Reason (R): Perimeter is one dimension as only length is involved .Area is two dimensional as length and
              breadth are involved.
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