ISEE Middle Level Math : How to find the perimeter of a parallelogram

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

varsity tutors app store varsity tutors android store

Example Questions

Example Question #1 : Parallelograms

Find the perimeter of the parallelogram.

Isee_mid_question_5

Possible Answers:

18 in

13 in

36 in

26 in

Correct answer:

26 in

Explanation:

To find the perimeter of a parallelogram, add the lengths of the sides. Opposite sides of a parallelogram are equivalent.

Example Question #2 : Parallelograms

Parallelogram

Note: Figure NOT drawn to scale.

 

Find the perimeter of the parallelogram in the diagram.

Possible Answers:

Correct answer:

Explanation:

The perimeter of the parallelogram is the sum of the four side lengths - here, that formula becomes

.

Note that the height  is irrelevant to the answer.

Example Question #3 : Parallelograms

If the perimter of a parallelogram is  and one of the sides is , what is the other side length?

Possible Answers:

The answer cannot be found

Correct answer:

Explanation:

The perimeter of a parallelogram is found by adding up all four sides.

 Since there are two pairs of side with equal lengths, two sides must have a length of .  

So the perimeter would be 

 or .  

To find the value of the other side length, you would divide the remaining perimeter not include in the other sides by .  

So .  

That means the other side length would be .

Example Question #1 : Parallelograms

If a parallelogram has side lengths of  and , what is the perimeter?

 

 
Possible Answers:

Correct answer:

Explanation:

The perimeter of a parallelogram is two times the two side lengths and add them together.  

Therefore, this particular problem becomes as follows.

 

and 

 

so 

.

Learning Tools by Varsity Tutors

Incompatible Browser

Please upgrade or download one of the following browsers to use Instant Tutoring: