# ISEE Lower Level Quantitative : How to find the area of a rectangle

## Example Questions

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### Example Question #1 : How To Find The Area Of A Rectangle

What could be the dimensions of a rectangle with an area of ?

Explanation:

Since area is length times width, the answer must equal 36 when multiplied. The only combination is 9cm by 4cm.

### Example Question #2 : How To Find The Area Of A Rectangle

Ms. Ramon's classroom is  feet long and  feet wide. What is the area of her classroom?

Explanation:

To find the area of a rectangle, multiply the length by the width.

### Example Question #3 : How To Find The Area Of A Rectangle

The above diagram shows a rectangular home within a rectangular yard. What is the area of the yard?

Explanation:

The area of the yard is the area of the smaller rectangle subtracted from that of the larger rectangle. The area of a rectangle is the product of its length and its height, so the larger rectangle has area

square feet,

and the smaller rectangle has area

square feet.

Subtract to get the area of the yard:

square feet.

### Example Question #4 : How To Find The Area Of A Rectangle

Give the area of the rectangular swimming pool shown above.

Explanation:

The length and the width of the pool are 50 feet and 35 feet; the area of this rectangle is their product, or

square feet.

### Example Question #5 : How To Find The Area Of A Rectangle

Find the area of the following rectangle.

Explanation:

The equation for the area of a rectangle is

In this case, we have:

### Example Question #6 : How To Find The Area Of A Rectangle

Find the area of the following rectangle.

Explanation:

To find the area of the rectangle we use the equation

In this case, we have:

### Example Question #7 : How To Find The Area Of A Rectangle

Find the area of the following rectangle.

Explanation:

In order to find the area of the rectangle we use the equation

In this case, we have:

### Example Question #8 : How To Find The Area Of A Rectangle

A rectangle with its length and its width is shown below.

If the area of a rectangle is , what is the area of the rectangle above?

Explanation:

Since the question tells you the formula to find the area of a rectangle, plug in the given values found in the figure to get the correct answer.

For the figure given,  and .

### Example Question #9 : How To Find The Area Of A Rectangle

A rectangle with its length and its width is shown below.

If the area of a rectangle is , what is the area of the rectangle above?

Explanation:

Since the question tells you the formula to find the area of a rectangle, plug in the given values found in the figure to get the correct answer.

For the figure given,  and .

### Example Question #10 : How To Find The Area Of A Rectangle

A rectangle with its length and width is shown below.

If the area of a rectangle is , what is the area of the rectangle above?

Explanation:

Since the question tells you the formula to find the area of a rectangle, plug in the given values found in the figure to get the correct answer.

For the figure given,  and .

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