The length of a rectangle is 12 cm.

What is the width if the area is 72 cm?

Width of the rectangle = 6cm

Step-by-step explanation:

Let width be b

Area of rectangle = 72cm²

length * width = 72cm²

12*b = 72

b = 72/12

b = 6cm

Width = 6 cm.

Step-by-step explanation:

The formula for are is length x width. You have the length, which is 12. This gives you this equation ...

12 x? = 72 cm.

If you use the inverse operation (opposite) of multiplication, you divide both sides by 12, giving you 6 cm. To double check, do 6 x 12, which equals 72.