Garden perimeter

This task is about working out the perimeter of different sized gardens.
Katherine has three three garden beds in the māra kai. She decides to trim the grass around the edge of each one.
 

three gardens
 

a) What is the distance around the kūmara bed?
 
  (A)
(B)
(C)
(D)
(E)
6 m
12 m
24 m
36 m
None of these. The distance around the kūmara bed is __________ m.
 
b) What is the distance around the pumpkin bed?
 
  (A)
(B)
(C)
(D)
(E)
3 m
12 m
5 m
30 m
None of these. The distance around the pumpkin bed is __________ m.
 
c) What is the distance around the silverbeet and kale bed?
 
  (A)
(B)
(C)
(D)
(E)
4 m
9 m
13 m
36 m
None of these. The distance around the silverbeet and kale bed is __________ m.