62mThe point of this activity is to find the perimeter.The perimeter can be found by adding all the sides.We're given all these side lengths:[tex]\sf 12m+3m+7m+12m+10m+3m+15m[/tex]The perimeter is the sum of all lengths, hence:[tex]\sf 15m+7m+12m+10m+3m+15m[/tex][tex]\sf 22m+12m+10m+3m+15m[/tex][tex]\sf 34m+10m+3m+15m[/tex][tex]\sf 44m+3m+15m[/tex][tex]\sf 47m+15m[/tex][tex]\sf 62m[/tex]