SSAT Elementary Level Math : How to find the perimeter of a triangle

Study concepts, example questions & explanations for SSAT Elementary Level Math

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Example Questions

Example Question #21 : How To Find The Perimeter Of A Triangle

What is the PERIMETER of the triangle in the figure? Screen_shot_2014-01-31_at_4.13.52_pm

Possible Answers:

30 cm

Correct answer:

Explanation:

Because the question asks you to find the PERIMETER of the triangle, you are looking to figure out the distance around the outside of the triangle. You find the perimeter of triangles simply by adding the length of the three sides together. So the correct answer here is , or .

Example Question #22 : How To Find The Perimeter Of A Triangle

What is the PERIMETER of the triangle in the figure? Screen_shot_2014-01-31_at_4.20.24_pm

Possible Answers:

Correct answer:

Explanation:

Because the question asks you to find the PERIMETER of the triangle, you are looking to figure out the distance around the outside of the triangle. You find the perimeter of triangles simply by adding the length of the three sides together. So the correct answer here is , or .

Example Question #23 : How To Find The Perimeter Of A Triangle

What is the PERIMETER of the triangle in the figure?

Screen_shot_2014-01-31_at_4.15.00_pm

Possible Answers:

Correct answer:

Explanation:

Because the question asks you to find the PERIMETER of the triangle, you are looking to figure out the distance around the outside of the triangle. You find the perimeter of triangles simply by adding the length of the three sides together. So the correct answer here is , or  cm.

Example Question #51 : Triangles

Find the perimeter of an equilateral triange whose side length is 8.

Possible Answers:

Correct answer:

Explanation:

To find perimeter of an equilateral triangle, simply multiply the side length by 3. Thus,

Example Question #25 : How To Find The Perimeter Of A Triangle

Find the perimeter of an equilateral triangle whose side length is 6.

Possible Answers:

Correct answer:

Explanation:

To find perimeter of an equliateral triangle, simply multiply the side length by 3. Thus,

Example Question #1 : Recognize And Draw Shapes: Ccss.Math.Content.2.G.A.1

Which shape has only  sides? 

 

Possible Answers:

Triangle 

Cube

Pentagon

Hexagon

Square

Correct answer:

Triangle 

Explanation:

A triangle has  sides. 

Screen shot 2015 09 09 at 12.11.28 pm

Example Question #27 : How To Find The Perimeter Of A Triangle

Find the perimeter of an equilateral triangle whose side length is 9.

Possible Answers:

Correct answer:

Explanation:

To solve, simply use the following formula for the perimeter of an equilateral triangle. Thus,

Example Question #12 : Recognize And Draw Shapes: Ccss.Math.Content.2.G.A.1

What shape has only  angles? 

Possible Answers:

Hexagon 

Cube

Pentagon 

Square

Triangle 

Correct answer:

Triangle 

Explanation:

 A triangle is the only shape with  angles. 

Screen shot 2015 09 09 at 12.06.52 pm

Example Question #28 : How To Find The Perimeter Of A Triangle

If you have an equilateral triangle and the length of one side is , what is the perimeter?

Possible Answers:

Not enough information is given

Correct answer:

Explanation:

An equilateral triangle has three equal sides.  To find the perimeter of a triangle, you add up all the sides.  Your final answer would then be .

Example Question #29 : How To Find The Perimeter Of A Triangle

Find the perimeter of an equilateral triangle with side length 1.

Possible Answers:

Correct answer:

Explanation:

To solve, simply use the formula for the perimeter of an equilateral triangle. Thus,

Remember, the special property of an equilateral triangle is that all of its sides are the same length so, you can either add the side length 3 times or multiply it by 3.

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