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    2.  find the length of the following items.

                           a.                                                 b.

                           c.                                                 d.

                           e.

                       3.  Anil and Sunil are having a race to see who can run the quickest around a set of
                           6 rocks. each boy has to touch each rock but can choose which route to take. the
                           routes are not of the same length. the boys start

                           and finish the race at Rock A.
                           a.    Which is the shortest  route  around the rocks
                                 and back to the start rock A?
                                 Route i: A  →  B  →  C  →  F  →  E  →  D  →  A

                                              Or
                                 Route ii: A  →  D  →  C  →  B  →  E  →  F  →  A

                           b.    The shortest  route  from rock  A  to  rock  F is
                                 _________ m.
                           c.    The length of the route from rock A to rock C via
                                 rock B is _________ m.

                           d.    What is the length of the shortest  route  from
                                 rock D to rock C?                        _________

                                                                                                       21 st
                                                                                                     Century   #Subject Enrichment
                    CoNveRSioN                                                                        Skills

                    The following relationships help us convert one unit of length into another.

                           1 metre = 100 centimetres           or     1 m = 100 cm                × 1000 × 100     × 10
                           1 kilometre = 1000 metres           or     1 km = 1000 m             km      m      cm       mm

                    Metres into Centimetres                                                       ÷ 1000 ÷ 100     ÷ 10

                    To convert metres into centimetres, multiply the number of metres by 100.

                    examples:  a.  4 m = (4 × 100) cm = 400 cm
                                   b.  17 m = (17 × 100) cm = 1700 cm

                                                                                                                 155
                                                                                         Measurement of Length

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