To find the perimeter of a square, we will use the following formula:

where a, b, c, and d are the lengths of the sides of the square.

Now, we know the width of the square is 8in.  Because it is a square, all sides are equal.  Therefore, all sides are 8in.

Knowing this, we can substitute into the formula.  We get

The formula for perimeter of a square is

where a is the length of one side of the square.  So, we want to solve for a.

Now, we know the perimeter of the square is 28cm.  Knowing this, we can substitute into the formula.  We get

Therefore, the length of one side of the square is 7cm.

To find the perimeter of a square, we will use the following formula:

where a, b, c, and d are the lengths of the sides of the square.

Now, we know the width of the square is 12in.  Because it is a square, all sides are equal.  Therefore, all sides are 12in.  Knowing this, we can substitute into the formula.  We get

To find the perimeter of a square, we will use the following formula:

where a, b, c, and d are the lengths of the sides of the square.

Now, we know the length of the square is 7cm.  Because it is a square, all sides are equal.  Therefore, all sides are 7cm.  So, we get

To find the perimeter of a square, add all the sides together:

Remember that a square has four sides, each side with equal lengths. If a square has a perimeter of 18 cm, that means that each side has a length of

18 ÷ 4 =

4.5 cm.

The formula for the area of a square is length x width or length squared (length x length), since each side of a square has the same length.

So,

4.5 x 4.5 =

20.25cm²

The area of a square can be found using the same equation as the area of a rectangle - length times width.

However, in the case of a square, all of the sides are of equal length. Therefore, the area of a square can be found using the equation:

or

To calculate the area of a square, you need to multiply the length by the width. By definition, a square has 4 equal sides. So, by knowing the length of one side of the square, you know the length measurement and the width measurement.

Since the length of one side of this square is 10 in., you would multiply to get the answer.

Because area is the number of squares that would be used to cover the inside the shape, it is given in units². As a result, the answer is 100 in^.2.

The perimeter of a square is given by .  Here , so divide by four to get .

The area of a square is given by . Substitute the side length obtained from the perimeter equation to get .

The perimeter of a square is given by ,  or . Divide by four to get .

The area of a square is given by . Substitute the side length obtained from the perimeter equation to get .