### All Basic Geometry Resources

## Example Questions

### Example Question #31 : How To Find The Length Of The Side Of A Rectangle

If the area of a rectangle is , and the length of the rectangle is , what is the width of the rectangle?

**Possible Answers:**

**Correct answer:**

Recall how to find the area of a rectangle.

We can divide both sides by the length to find the width.

Now, plug in the information from the question.

### Example Question #32 : How To Find The Length Of The Side Of A Rectangle

If the perimeter of a rectangle is , and the length of the rectangle is , what is the width of the rectangle?

**Possible Answers:**

**Correct answer:**

Recall how to find the perimeter of a rectangle.

We can then manipulate this equation to find the width.

Now, plug in the information given by the question to find the width.

### Example Question #33 : How To Find The Length Of The Side Of A Rectangle

Find the length of one side of a rectangle whose are is and one side length is .

**Possible Answers:**

**Correct answer:**

To find the length of a side, we must manipulate the formula for the area of a rectangle as follows:

Thus,

### Example Question #34 : How To Find The Length Of The Side Of A Rectangle

A rectangle has an area of , and a length of . Find the width in inches.

**Possible Answers:**

**Correct answer:**

By using the formula for area, which is..:

..we plug in the numbers given. This gives us

### Example Question #35 : How To Find The Length Of The Side Of A Rectangle

Find the length of a recangle given area is 10 and width is 2.

**Possible Answers:**

**Correct answer:**

To solve, simply use the formula for the area of a rectangle and solve for length.

### Example Question #36 : How To Find The Length Of The Side Of A Rectangle

A checkerboard has an area of and one of the sides has a length of . What is the length of the other side of the board?

**Possible Answers:**

**Correct answer:**

We can use the formula for the area of a rectangle to find the length of the side with the information provided:

### Example Question #37 : How To Find The Length Of The Side Of A Rectangle

If a graham cracker has a width of and an area of , what would be the length of the cracker?

**Possible Answers:**

**Correct answer:**

We can solve for the missing length using the formula for area of a rectangle:

### Example Question #38 : How To Find The Length Of The Side Of A Rectangle

A rectangle has a width of 5 meters. Its length is 2.5 times the width. What is the length of the long side and the total area of this rectangle?

**Possible Answers:**

None of these.

**Correct answer:**

"2.5 times the width" is equivalent to 2.5w. The length of the long side is .

The area is

### Example Question #39 : How To Find The Length Of The Side Of A Rectangle

A rectangle has a perimeter of . Its width is 5 in. What is the length of one long side?

**Possible Answers:**

None of these.

**Correct answer:**

The perimeter of a rectangle can be found with .

Fill in the information given, and solve for l:

### Example Question #40 : How To Find The Length Of The Side Of A Rectangle

Brady wants create a garage with an area of 2000 square feet. He needs the garage to be 50 feet long to fit all of his equipment. How wide will the garage be?

**Possible Answers:**

None of the answers given are correct

**Correct answer:**

Since we have the area, and we have the length, we use the area of a rectangle formula to find the missing side length.

divide both sides by 50 to get the variable by itself

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