Question

Practice Time
Here are pictures of some more fields. Find out which one has the longest boundary.
(a) Boundary = __________ metre




(b) Boundary = __________ metre




(c) Boundary = __________ metre




(d) Boundary = __________ metre

Answer 1

(a)
Length of the boundary = 6 m + 15 m + 24 m + 15 m
= 60 m
Boundary = 60 metre

(b)
Length of the boundary = 6 m + 3 m + 6 m + 6 m + 12 m + 9 m
= 42 m
Boundary = 42 metre

(c)
Length of the boundary = 9 m + 12 m + 15 m
= 36 m
Boundary = 36 metre

(d)
Length of the boundary = 9 m + 15 m + 15 m + 9 m + 15 m + 15 m
= 78 m
Boundary = 78 metre

Thus, figure (d) has the longest boundary.