Question

Here are pictures of some more fields. Find out which one has the longest boundary?

1. 
   
   
   Boundary = ______ metre
2. 
   
   Boundary = ______ metre
3. 
   
   Boundary = ______ metre
4. 
   
   Boundary = ______ metre

Answer 1

1. Length of boundary = 15 metre + 6 metre + 15 metre + 24 metre
   = 60 metre
2. Boundary = 9 metre + 6 metre + 3 metre + 6 metre + 6 metre + 12 metre
   = 42 metre
3. Boundary = 9 metre + 6 metre + 3 metre + 6 metre + 6 metre
   + 12 metre
   = 42 metre
4. Boundary = 15 metre + 15 metre + 9 metre + 15 metre + 15 metre + 9 metre
   = 78 metre

Therefore, field (d) has the longest boundary.