Answer:
3x^2
Step-by-step explanation:
Area is length times width of a side of the box. Base of box 1 is 3x by x. 3x times x equals 3x squared. We don't have any more information, so x remains a variable.
Answer:
The area is: [tex]A = 3x ^ 2\ units ^ 2[/tex]
Step-by-step explanation:
We assume that the base of Box 1 is a rectangle of sides x and 3x.
So by definition the area of a rectangle is:
[tex]A = Lw[/tex]
Where: L is the length and w is the width of the rectangle
So the base area of the Box 1 is:
[tex]A = 3x * x[/tex]
[tex]A = 3x ^ 2\ units ^ 2[/tex]
