Page 131 - ICSE Math 4
P. 131

Exercise 10.1



                      1.  Find the perimeter of the following figures with the help of the given

                           measurements.
                           (a)      A      4 cm      B                    (b)             P



                                3 cm                  3 cm                      4 cm              5 cm


                                    D      4 cm      C                         Q                         R
                                                                                          6 cm

                            (c)        E   3 cm    F                      (d)     M  1 cm  N
                                2 cm                  2 cm                                1 cm
                                                                                          O    3 cm    P
                                  J                     G                      3 cm
                                                                                                       2 cm
                                2 cm                 2 cm
                                                                                  R                    Q
                                      I    3 cm    H                                       4 cm

                      2.  Find the perimeter of your pencil box, mathema  cs notebook and textbook, and
                           lunch box with the help of a ruler.

                      3.  Find the perimeter of a triangle whose sides are 6 cm, 3 cm and 5 cm.

                                                                                                           30 cm
                      4.  Look at the given pictures and answer the ques  ons.
                           (a)  What is the perimeter of the frame of the pain  ng
                                                                                             18 cm
                                given alongside?



                           (b)  The playground near Raju’s house
                                                                                              200 m
                                is shown alongside. If Raju runs
                                around the ground once, fi nd the         140 m                                     140 m
                                distance covered by him.
                                                                                              200 m
                    Area

                    Area is the surface or region enclosed within a closed boundary by a plane fi gure.

                    Look at the fi gures shown below.









                    The shaded part in the fi gures represent the area of the given fi gures.

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