# ISEE Lower Level Math : How to find the perimeter of a square

## Example Questions

### Example Question #191 : Quadrilaterals

Find the perimeter of a square with a width of 12in.

Explanation:

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, we know that all sides are equal.  Therefore, all sides are 12in.

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

### Example Question #62 : Squares

Use the following square to answer the question:

Find the perimeter.

Explanation:

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.

Given the square

we can see one side is 14cm.  Because it is a square, we know that all sides are equal.  Therefore, all sides are 14cm.

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

### Example Question #61 : Squares

Find the perimeter of a square with a length of 11cm.

Explanation:

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 square has a length of 11cm.  Because it is a square, all sides are equal.  Therefore, all sides are 11cm.

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

### Example Question #61 : Squares

Use the following square to answer the question:

Find the perimeter.

Explanation:

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, let's look at the square.

We can see the width is 8cm.  Because it is a square, we know that all sides are equal.  Therefore, all sides are 8cm.

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

### Example Question #62 : Squares

Find the perimeter of a square with a length of 7in.

Explanation:

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 7in.  Because it is a square, we know that all sides are equal.  Therefore, all sides are 7in.

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

### Example Question #63 : Squares

Use the following square to answer the question:

Find the perimeter.

Explanation:

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, given the square

We can see the width is 2in.  Because it is a square, all sides are equal.  Therefore, all sides are 2in.

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

### Example Question #211 : Geometry

Find the perimeter of a square that has a length of 7in.

Explanation:

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 square has a length of 7in.  Because it is a square, all sides are equal.  Therefore, all sides are 7in.

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

### Example Question #64 : Squares

Find the perimeter of a square with a width of 8in.

Explanation:

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

### Example Question #69 : Squares

Find the length of one side of a square if it's perimeter is 28cm.

Explanation:

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.

### Example Question #61 : Squares

Find the perimeter of a square with a width of 12in.

Explanation:

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