Answer:
[tex]A=48\ m^2[/tex]
Step-by-step explanation:
Given that,
Width of the rectangle, b = 4 m
The length of the rectangle, l = 3b = 3(4) m = 12 m
Let A is the area of the rectangle. It is given by :
[tex]A=l\times b[/tex]
[tex]A=12\ m\times 4\ m[/tex]
[tex]A=48\ m^2[/tex]
So, the area of the rectangle is [tex]48\ m^2[/tex]. Hence, this is the required solution.
