Question

What is the smallest perimeter a rectangle of area 12 cm can have?

A.12 cm
B.14 cm
C.16 em
D.26 cm
​

Answer 1

14 cm

Explanation:

The maximum area of a rectangle (actually square) with a perimeter of 14 can have is 12.25 cm². So the smallest perimeter a rectangle of 12 cm² i just a little below 14 cm, namely 4sqrt(12) = 13.86 cm.