### All ISEE Middle Level Math Resources

## Example Questions

### Example Question #141 : Quadrilaterals

Find the perimeter of a rectangle with a length of 8cm and a width that is half the length.

**Possible Answers:**

**Correct answer:**

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

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

Now, we know the length of the rectangle is 8cm. Because it is a rectangle, we know the opposite side is also 8cm. We also know the width is half the length. Therefore, the width of the rectangle is 4cm. Because it is a rectangle, we know the opposite side is also 4cm. Knowing this, we can substitute into the formula. We get

### Example Question #142 : Quadrilaterals

Find the perimeter of a rectangle with a width of 4in and a length that is 3 times the width.

**Possible Answers:**

**Correct answer:**

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

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

Now, we know the width of the rectangle is 4in. Because it is a rectangle, we know the opposite side is also 4in.

We know the length is 3 times the width. Therefore, the length is 12in. Because it is a rectangle, we know the opposite side is also 12in.

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

### Example Question #81 : Rectangles

Find the perimeter of a rectangle with a width of 8cm and a length that is three times the width.

**Possible Answers:**

**Correct answer:**

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

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

Now, we know the width of the rectangle is 8cm. Because it is a rectangle, we know the opposite side is also 8cm. We also know the length is three times the width. Therefore, the length is 24cm. Because it is a rectangle, we know the opposite side is also 24cm.

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

### Example Question #82 : Rectangles

Use the following image to answer the question:

Find the perimeter of the rectangle.

**Possible Answers:**

**Correct answer:**

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

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

Now, let's look at the rectangle.

We can see the length is 9 inches. Because it is a rectangle, the opposite side is also 9 inches. We can see the width is 6 inches. Because it is a rectangle, the opposite side is also 6 inches.

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

### Example Question #83 : Rectangles

Find the perimeter of a rectangle with a length of 8cm and a width that is half the length.

**Possible Answers:**

**Correct answer:**

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

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

Now, we know the length of the rectangle is 8cm. Because it is a rectangle, we know the opposite side is also 8cm. We know the width of the rectangle is half the length. Therefore, the width is 4cm. Because it is a rectangle, the opposite side is also 4cm.

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

### Example Question #84 : Rectangles

Find the perimeter of a rectangle with a length of 7in and a width of 4in.

**Possible Answers:**

**Correct answer:**

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

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

Now, we know the length of the rectangle is 7in. Because it is a rectangle, the opposite side is also 7in.

We also know the width of the rectangle is 4in. Because it is a rectangle, the opposite side is also 4in.

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

### Example Question #85 : Rectangles

Find the perimeter of a rectangle with a width of 4in and a length that is three times the width.

**Possible Answers:**

**Correct answer:**

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

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

Now, we know the width of the rectangle is 4in. Because it is a rectangle, we know the opposite side is also 4in.

We also know the length is three times the width. Therefore, the length is 12in. Because it is a rectangle, the opposite side is also 12in.

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

### Example Question #86 : Rectangles

Find the perimeter of a rectangle with a length of 12cm and a width that is a quarter of the length.

**Possible Answers:**

**Correct answer:**

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

Where *a, b, c, *and *d* are the lengths of the sides of the rectangle.

Now, we know the length of the rectangle is 12cm. Because it is a rectangle, the opposite side is also 12cm. We also know the width of the rectangle is a quarter of the length. To find the width, we will divide 12 by 4. Therefore, the width is 3cm. Because it is a rectangle, the opposite side is also 3cm.

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

### Example Question #87 : Rectangles

Find the perimeter of a rectangle that has a width of 7in and a length that is three times the width.

**Possible Answers:**

**Correct answer:**

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

Where *a, b, c, *and *d* are the lengths of the sides of the rectangle.

Now, we know the width of the rectangle is 7in. Because it is a rectangle, the opposite side is also 7in. We also know the length of the rectangle is three times the width. Therefore, the length is 21in. Because it is a rectangle, the opposite side is also 21in.

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

### Example Question #88 : Rectangles

Find the perimeter of a rectangle with a width of 7in and a length that is two times the width.

**Possible Answers:**

**Correct answer:**

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

Where *a, b, c, *and *d* are the lengths of the sides of the rectangle.

Now, we know the width of the rectangle is 7in. Because it is a rectangle, the opposite side is also 7in.

We know the length is two times the width. Therefore, the length is 14in. Because it is a rectangle, the opposite side is also 14in.

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

Certified Tutor