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    E:\Working\Orange_Education\Math_Genius_2\Open_Files\Chap_09
                   \ 26-Sep-2025  Bharat Arora   Proof-10                                   Reader’s Sign _______________________ Date __________

                  Metre

                  It is very time-consuming if we measure the length of the wall using cm. So, we use
                  a metre to measure longer lengths. In short, we write metre as m.

                  If we put 10 strips each of 10 cm length together, we make one metre.

                        10 cm 10 cm 10 cm 10 cm 10 cm 10 cm 10 cm 10 cm 10 cm 10 cm

                  So, 10 × 10 cm, that is, 100  cm  =  1  m or 1 m = 100 cm.

                                                                        2 m

                                                1 m

                    About 1 m      About 1 m                                                   About 11 m

                          Think Tank                                                                            Logical Thinking
                         Which unit (m or cm) will you use to measure the following?
                         1.  Length of a          2.  Height of a boy     3.  Length of a shoe     4.  Height of a
                            toothbrush                                       lace                     building

                           Practice Time 9A

                  1.  Measure the lengths of the given strips by using a ruler and write them.

                       (a)                                                                                             cm

                       (b)                                                                                             cm

                       (c)                                                                                             cm

                       (d)                                                                                             cm

                  Mathematics-2                                                                                         155

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