Question

Maria grows several varieties of plants
in a rectangular-shaped garden. She
uses fencing to divide the garden into
16 squares that are each 1 m by 1 m.
She also puts fencing around the
perimeter of the garden.
Which of the following represents the
smallest amount of fencing that Maria
needs?
a 24 m
b 40 m
c 42 m
d 49 m