ISEE Lower Level Quantitative : Plane Geometry

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

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Example Questions

Example Question #1504 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

The length of BC is x and the length of CE is y.

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What is the length of segment ?

Possible Answers:

Correct answer:

Explanation:

Segments  and  make up segment .  Using the segment addition postulate, add the lengths of  and  to find the length of .

Substitute  and :  

Example Question #4 : How To Find Length Of A Line

The length of  is  and the length of  is .

 

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What is the length of segment ?

Possible Answers:

Correct answer:

Explanation:

Using the segment addition postulate, we know that .  We can substitute  and  for  and  and solve for .

 

Substitute:                          

Subtract y from both sides:                    

Simplify:                              

Example Question #1505 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

The length of  is  and the length of  is .

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What is the length of segment  in terms of  and ?

Possible Answers:

Correct answer:

Explanation:

Segments  and  make up segment . Using the segment addition postulate, add the lengths of  and  to find the length of .

Substitute  and :

Example Question #1506 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

Number_line_midpoint

 is the midpoint of the number line that extends from  to . What is the value of ?

Possible Answers:

Correct answer:

Explanation:

Find the average of the two endpoints to find their midpoint. To find the average of two numbers, add them together and divide by two.

Example Question #5822 : Ssat Elementary Level Quantitative (Math)

How many lines of symmetry does a square have?

Possible Answers:

Correct answer:

Explanation:

A line of symmetry is the imaginary line that you draw through a shape so that you can fold the image over the line and have both halves match exactly. Any regular shape has as many lines of symmetry as it does sides. Since a square has four sides, the correct answer is 4!

Example Question #3 : How To Find Symmetry Of A Line

How many lines of symmetry does an octagon have?

Possible Answers:

Correct answer:

Explanation:

A line of symmetry divides a shape into two equal and identical halves. Any regular shape has as many lines of symmetry as it does sides. Since octagons have eight sides, the correct answer is 8.

Example Question #5823 : Ssat Elementary Level Quantitative (Math)

How many lines of symmetry does a rectangle have?

Possible Answers:

Correct answer:

Explanation:

A line of symmetry is the imaginary line that you draw through a shape so that you can fold the image over the line and have both halves match exactly. Any regular shape has as many lines of symmetry as it does total sides. Since a rectangle has four sides, the correct answer is 4!

Example Question #4 : How To Find Symmetry Of A Line

The length of a certain line is  inches. If this line is cut in half, how long is each half?

Possible Answers:

Correct answer:

Explanation:

Divide the length of the line by 2 to find the length of each half:

Example Question #5 : How To Find Symmetry Of A Line

How many lines of symmetry does an octagon have?

Possible Answers:

Correct answer:

Explanation:

A line of symmetry is the imaginary line that you draw through a shape so that you can fold the image over the line and have both halves match exactly. Any regular shape has as many lines of symmetry as it does sides. Since an octagon has eight sides, the correct answer is .

Example Question #4 : How To Find Symmetry

Ms. Johnson is knitting a blanket for her grandson. She has a piece of yarn that is exactly  feet long however, she only needs half of the piece of yarn. What is the length of the piece of yarn that Ms. Johnson needs to make the blanket for her grandson? 

Possible Answers:

 

 

 

 

 

Correct answer:

 

Explanation:

Ms. Johnson started with  feet of yarn, however she only needs half of the  feet.

To find the length of the amount of yarn that she needs, divide  in half. 

The solution is: 

                        


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