The area of a rectangle is 123cm2. if the width is 3cm find the length

So if the area is 123 cm squared, then you would want to find the width and length. But they already give you the width, 3 cm.

So originally, your equation would be: length times width = Area.

Since we have width and area, the equation now is: length times 3 = 123 cm.

Now we have to solve it backwards, basically meaning to divide 123 by 3 to get the length, which is 41 cm.

Equation is: 3 cm times 41 cm = 123 cm squared.

Hopefully i did this right and got you the answer you were looking for. Good luck and let me know how this helped.

area = width * length

so 123 = 3 * length

123/3 = length

length = 41