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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 __________

                       After getting the bed ready.     It is 1, 2, ...,   But how is    1,2,3,...,10.         It is so

                                                        6 handspans        it possible?     It is 10          confusing.
                                                           long.                          handspans
                                                                                             long.

                        I am
                      unable to                                                                I have a solution
                        fit in.                                                                     for this.

                    They do not get the same length of the bed because their handspans have different lengths.
                    Answer the following questions.

                    1.  Measure the length and breadth of your study table using your pencil.

                    2.  Guess how many matchsticks can be put along the length of an incense stick?

                         Verify your estimation by arranging them.

                  MEASUREMENT OF LENGTH

                  Measuring Length Using Body Parts (Non-Standard Units)

                  Length can be measured using a handspan, finger width, cubit, footspan and pace.
                  These are non-standard units of length.

                     Handspan      Finger/digit            Cubit                Footspan             Pace

                  Measure the width of your classroom with your footspan. How many footspans

                  long is it? Ask your friend to do the same with his/her footspan.

                  Did you both get the same length? Most probably not.

                  Mathematics-2                                                                                         153

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