Take a walk around the edge!
              Take a walk around the edge! 16
                                                     16
                  6
                  6
                           10 cm
                           10 cm
                                                The perimeter 
                                                The perimeter 
                                                is…
                                                is…
       6cm
       6cm
                                                  32cm !
                                                  32cm !
    32
    32
                                                       22
                                                       22
                                  
              Take a walk around the edge!
              Take a walk around the edge!
                                     8
                                     8
                                                The perimeter 
                                                The perimeter 
                                                is…
                                                is…
                                       8cm
                8cm                    8cm
     26         8cm                               26 cm !
     26                                           26 cm !
                                                         16
                                                         16
                            10 cm
                                  
                12                        16
                12                         16
               Take a walk around the edge!
               Take a walk around the edge!
    This is a regular 
    This is a regular 
    octagon with sides 
    octagon with sides                                    20
                                                  The peri2me0ter 
       8                                          The perimeter 
       8
    4 cm 
    4 cm                                          is…
                                                  is…
          4
          4                                         32 cm !
                                                    32 cm !
                                                           24
                                                           24
        32                                           28
        32                                           28
                                   
                                        30
                                        30
              Take a walk around the edge!
              Take a walk around the edge!
    This shape 
     This shape 
    has sides of 
     has sides of                               The perimeter 
    5 cm each                                   The perimeter 
     5 cm each                                  is…
                                                is…
   15
   15
                                                  60 cm !
                                                  60 cm !
                                                     45
                                                      45
       60
       60