ISEE reduced Level Math help » Geometry » airplane Geometry » quadrilaterals » Squares » how to discover the perimeter of a square

What is the perimeter of the square below?

 

*

*

*


*


*


*


*


Explanation:

To uncover the perimeter that a shape, take every one of the exterior measurements and include them together. Over there are only 2 measurements showing. However, perimeter goes all the means around the square i beg your pardon has four equal sides. Therefore, the measurement of the various other sides have to be the same and also must be offered to uncover the perimeter.

You are watching: Perimeter of a 4 inch square

Take all four sides and include them with each other to find the perimeter the the square. Because each next is equally 5 inches then the total of the sides (or perimeter that the square) would certainly be

*


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Example concern #2 : just how To uncover The Perimeter that A Square


If the area of a square is 100 cm2 then what is the length of each side? What is the perimeter of the square?


Possible Answers:

None that the various other answers


Correct answer:

*


Explanation:

The provided area that the square to be calculated by multiply the measurement of one next of the square by the measure of an additional side the the square (which space equal measurements). Because the area was 100 centimeter then there to be a number when multiplied to itself would be 100. The number that renders this true is 10 as

*

It is now known that each side of the square has a size of 10 cm and also to discover the perimeter the the square the size of each side should be used to find the complete length about the square. Therefore, because each next is 10 cm then the perimeter can be found by including all the the sides which would certainly be

*

The perimeter of the square would certainly be

*

This renders the exactly answer

*

 


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Example concern #3 : how To discover The Perimeter of A Square


What is the perimeter that a square that has a side through a size of 12 cm.?


Possible Answers:
Correct answer:

*


Explanation:

To discover the perimeter that a shape, friend must add up the lengths of the sides. Through definition, a square has actually 4 equal sides. So, girlfriend only need to know the length of one side of a square in order to recognize the lengths of all the political parties of a square.

Since the length of one side of this square is 12 cm., you deserve to either add the lengths that the 4 sides together or multiply the size of one next by 4.

*

*

The units offered in this answer would certainly be cm. — no cm.2 — since we space only discover the length aroud the shape once solving for perimeter.

 


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Example question #4 : how To uncover The Perimeter the A Square


The area the a square is

*
. What is the perimeter?


Possible Answers:
Correct answer:

*


Explanation:

The area that a square is given by . Below

*
, so take the square root of both sides to get
*
.

The perimeter that a square is offered by . Substitute the next length acquired from the area equation come get 

*


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Example question #5 : exactly how To find The Perimeter of A Square


The area that a square is

*
. What is the perimeter?


Possible Answers:
Correct answer:

*


Explanation:

The area the a square is offered by , or 

*
. Take it the square root of both sides to get
*
.

The perimeter the a square is offered by . Substitute the side length obtained from the area equation come get 

*
.


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Example concern #6 : exactly how To uncover The Perimeter of A Square


The area that a square is

*
. What is the perimeter?


Possible Answers:
Correct answer:

*


Explanation:

The area the a square is offered by , or

*
. Take the square root of both sides to acquire
*
.

The perimeter the a square is given by . Instead of the value acquired from the area equation to obtain

*


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Example inquiry #7 : how To discover The Perimeter that A Square


The area the a square is

*
. What is the perimeter?


Possible Answers:
Correct answer:

*


Explanation:

The area of a square is provided by

*
, or 
*
. Take it the square root of both sides to get
*
.

The perimeter the a square is offered by

*
. Instead of the next length derived from the area equation come get 
*


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Example question #8 : exactly how To find The Perimeter of A Square


If the perimeter that a square is

*
 

What is the length of one of its sides?


Possible Answers:
Correct answer:

*


Explanation:

The perimeter of a form is equal to the sum of the lengths of each side. Through definition, a square has actually 4 same sides. As a result, you deserve to divde the perimeter by 4 to get the length of one side:

*

Since

*
 divided by
*
 equals
*
, then 
*
 is the length of one side of the square.

You can likewise check her answer by including up the lengths of every the sides or by multiply the size of one of the political parties by

*
. If you obtain
*
, you are correct.

*

*


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Example question #9 : exactly how To discover The Perimeter that A Square


The area that a square is

*
. What is that is perimeter?


Possible Answers:

25 feet


3 feet


20 feet


16 feet


5 feet


Correct answer:

20 feet


Explanation:

The area of a square is calculate by multiply one side by itself.

*

If the area is 25, climate the length of one side will be the square root of 25.

*

*

The square root of 25 is 5, so each side should be 5 feet long.

If every of the 4 sides is 5 feet long, then the perimeter would certainly be 20 feet due to the fact that there are 4 sides total.

*

*


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Example inquiry #10 : how To uncover The Perimeter of A Square


Which of the complying with is the perimeter of a square that has actually an area of 9 square inches?


Possible Answers:

6 inches


12 inches


9 inches


14 inches


Correct answer:

12 inches


Explanation:

If a square has an area the 9 square inches, every side is 3 inches. This is since 3 inches times 3 inches is 9 inches. (The formula because that the area that a square is length times hieght.)

Given the a square has 4 sides, we get the perimeter by multiplying 3 by 4, giving us a perimeter the 12 inches. 


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