High School Math : How to find the perimeter of a triangle in pre-algebra

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #1 : How To Find The Perimeter Of A Triangle In Pre Algebra

Find the perimeter of a triangle with sides 

Possible Answers:

Correct answer:

Explanation:

Add up all of the sides to get 35 inches. 

Example Question #1 : How To Find The Perimeter Of A Triangle In Pre Algebra

What is the perimeter of a triangle with side lengths of ,, and ?

Possible Answers:

Correct answer:

Explanation:

To find the perimeter of a triangle you must add all of the side lengths together.

In this case our equation would look like 

Add the numbers together to get the answer .

Example Question #2 : Perimeter Of A Figure

What is the perimeter of a triangle with side lengths of , and  ?

Possible Answers:

Correct answer:

Explanation:

To find the perimeter of a triangle you must add all of the side lengths together.

In this case our equation would look like 

Add the numbers together to get the answer .

Example Question #4 : How To Find The Perimeter Of A Triangle In Pre Algebra

What is the perimeter of a triangle with side lengths of 

 

Possible Answers:

Correct answer:

Explanation:

To find the perimeter of a triangle you must add all of the side lengths together.

In this case our equation would look like 

Add the numbers together to get the answer .

Example Question #5 : How To Find The Perimeter Of A Triangle In Pre Algebra

What is the perimeter of a triangle with side lengths of , and ?

Possible Answers:

Correct answer:

Explanation:

To find the perimeter of a triangle you must add the three side lengths together.

In this case our equation would look like 

Add the numbers together to get the answer .

Example Question #2 : How To Find The Perimeter Of A Triangle In Pre Algebra

What is the perimeter of a triangle with side lengths of , and ?

Possible Answers:

Correct answer:

Explanation:

To find the perimeter of a triangle, add the lengths of all sides together:

Example Question #7 : How To Find The Perimeter Of A Triangle In Pre Algebra

What is the perimeter of an equilateral triangle if one side is ?

Possible Answers:

We need to know the lengths of the other sides to solve.

Correct answer:

Explanation:

The perimeter is the sum of the sides of the triangle. Because the triangle is equilateral, all three sides have equal length.

That means we can take the formula 

and say .

 

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