Area of a Rectangle: Calculate The Missing Side based on the formula

First, we'll multiply side AB by side BC

We are given that side BC equals 5, therefore:

$AB\times BC=AB\times5$

We'll call side AB as X

And therefore:

$5x=30$

We'll divide both sides by 5 and get:

$x=6$

Therefore, $BC=6$

We use the formula to calculate a rectangle: length times width:

$AB\times AC=S$

We place the existing data into the formula:

$AB\times7=63$

$7AB=63$

We divide both sides by 7:

$AB=9$

The area of a rectangle is equal to its length multiplied by its width.

Let's first input the given data into the formula:

$S=AB\times AC$

$50=AB\times5$

Let's now divide both sides by 5:

$AB=10$

The area of the rectangle is equal to its length multiplied by its width.

Let's begin by substituting the known data into the formula:

$S=AB\times AC$

$44=AB\times4$

Let's now divide both sides by 4:

$AB=11$

The area of the rectangle is equal to its length multiplied by its width.

Let's begin by inserting the known data into the formula:

$S=AB\times AC$

$24=AB\times3$

Let's now divide both sides by 3:

$AB=8$

The area of the rectangle is equal to its length multiplied by its width.

Let's begin by inserting the known data into the formula:

$S=AB\times AC$

$84=AB\times7$

Let's now divide both sides by 7:

$AB=12$

The area of a rectangle is equal to its length multiplied by its width.

Let's insert the known data into the formula as follows:

$S=AB\times AC$

$27=AB\times3$

Finally let's divide both sides by 3:

$AB=9$

The area of a rectangle is equal to its length multiplied by its width.

Hence let's begin by inserting the known data into the formula:

$S=AB\times AC$

$55=AB\times5.5$

Let's now divide both sides by 5.5:

$AB=10$

Remember that to calculate the area of the rectangle, we multiply the length by the width.

Therefore:

$42=12\times CD$

$42=12CD$

Divide both sides by 12:

$3.5=CD$

The area of the rectangle is equal to its length multiplied by its width.

Let's begin by inserting the known data into the formula:

$S=AB\times AC$

$15=AB\times2.5$

Let's now divide both sides by 2.5:

$AB=6$

The area of the rectangle is equal to its length multiplied by its width.

Let's begin by inserting the known data into the formula:

$S=AB\times AC$

$75=AB\times7.5$

Let's now divide both sides by 7.5:

$AB=10$

The area of the rectangle is equal to its length multiplied by its width.

Let's begin by inserting the known data into the formula:

$S=AB\times AC$

$132=AB\times8.5$

Let's now divide both sides by 8.5:

$AB=15$