ISEE Lower Level Math : Quadrilaterals

Study concepts, example questions & explanations for ISEE Lower Level Math

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Example Questions

Example Question #53 : Geometry

Isee rect.

Find the area of the rectangle shown above. 

Possible Answers:

Correct answer:

Explanation:

To find the area of a rectangle apply the formula: 



The image provides the measurements for both the width and length of the rectangle. 

Thus, the solution is: 



Tip for mental math: Since you are multiplying  times a multiple of ten, you can think of these factors as:

 and then tack on one zero to the product because the orginal factors have a total of one zero--which equals a product of .

Example Question #61 : Geometry

A rectangle has a length of . The width of the rectangle is  that of the length measurement. Find the area of the rectangle. 

Possible Answers:

 

 

 

 

 

Correct answer:

 

Explanation:

To solve this problem, first note that the width of the rectangle must equal: 



Now that you know the width and length of the rectangle, apply the area formula: 



 

Example Question #41 : Quadrilaterals

A rectangle has a width of  and a length of  Find the area of the rectangle. 

Possible Answers:

 

 

Correct answer:

Explanation:

To find the area of a rectangle apply the formula: 



This problem provides the measurements for both the width and length of the rectangle. 

Thus, the solution is: 

  

Example Question #42 : Plane Geometry

Isee rect.

Find the area of the rectangle shown above. 

Possible Answers:

 

 

 

 

Correct answer:

 

Explanation:

In this problem you are given the width and perimeter of the rectangle. However, to solve for the area of the rectangle you must first find the length of the rectangle. To do so, work backwards using the formula: 











Now that you know the width and length of the rectangle, apply the area formula: 



 

Example Question #61 : Geometry

A rectangle has a width of  and a perimeter measurement of . Find the area of the rectangle. 

Possible Answers:

 

 

 

 

 

Correct answer:

 

Explanation:

In this problem you are given the width and perimeter of the rectangle. However, to solve for the area of the rectangle you must first find the length of the rectangle. To do so, work backwards using the formula: 











Now that you know the width and length of the rectangle, apply the area formula: 



 

Example Question #63 : Geometry

Isee rect.

Find the area of the rectangle shown above. 

Possible Answers:

 

 

 

 

 

Correct answer:

 

Explanation:

To find the area of a rectangle apply the formula: 



The image provides the measurements for both the width and length of the rectangle. 

Thus, the solution is: 

Example Question #41 : Plane Geometry

A rectangle has a width of  and a length of . Find the area of the rectangle. 

Possible Answers:

 

 

 

 

 

Correct answer:

 

Explanation:

To find the area of a rectangle apply the formula: 



This problem provides the measurements for both the width and length of the rectangle. 

Thus, the solution is: 



If the arithmetic is giving you trouble note that: 

 





The sum total of the partial products is: 

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

A rectangle has a width of  foot and a length of  foot. Find the area of the rectangle. 

Possible Answers:

Correct answer:

Explanation:

To find the area of a rectangle apply the formula: 



This problem provides the measurements for both the width and length of the rectangle. However, to select the correct answer it's necessary to convert the width and length measurements from feet to inches. 

Since an inch is equal to  of  foot, the width and length conversions are: 



 

Thus, the solution is: 

Example Question #41 : Quadrilaterals

A rectangle has a width of  and a perimeter measurement of . Find the area of the rectangle.

Possible Answers:

 

 

 

 

 

Correct answer:

 

Explanation:

In this problem you are given the width and perimeter of the rectangle. However, to solve for the area of the rectangle you must first find the length of the rectangle. To do so, work backwards using the formula: 











Now that you know the width and length of the rectangle, apply the area formula: 



 

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

A rectangle has a width of  and a length of . Find the area of the rectangle.

Possible Answers:

 

 

 

 

 

Correct answer:

 

Explanation:

To find the area of a rectangle apply the formula: 



This problem provides the measurements for both the width and length of the rectangle. 

Thus, the solution is: 

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