ISEE Lower Level Quantitative : How to find symmetry

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

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Example Questions

Example Question #11 : Lines

The cable on Ryan's new cellphone charger is twice as long as his old cellphone charger cable. If Ryan's new cellphone charger has a  feet long cable, how long was his old charger cable? 

Possible Answers:

 

 

Correct answer:

Explanation:

To find the length of Ryan's old cellphone cable, divide the length of his new cellphone charger in half. 

The solution is: 

Example Question #12 : Lines

Line segment  is twice as long as line segment . If line segment  is  inches, how many inches is ?

Possible Answers:

 

 

 

Correct answer:

 

Explanation:

The length of line segment  is half the length of line segment .

Therefore, divide  by 

Example Question #11 : How To Find Symmetry

 Line segment  is twice as long as line segment . If line segment  is  centimeters, how many centimeters is line segment ?

Possible Answers:

 

 

 

 

Correct answer:

 

Explanation:

To find the length of line segment , divide the length of line segment .
Therefore, the length of line segment  is:

Example Question #14 : Lines

Find the midpoint between coordinate points  and .

Possible Answers:

Correct answer:

Explanation:

To find the midpoint between these two coordinate points, use the formula,

Since our  and our  the midpoint formula becomes,

.

Example Question #531 : Plane Geometry

In a football contest, Jeff threw the football twice as far as Robby. If Jeff threw the ball  yards, how many yards did Robby throw the ball? 

Possible Answers:

 

 yards

 

 

Correct answer:

 

Explanation:

Since Jeff threw the football twice as far as Robby, divide  by .

Example Question #1521 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

Line segment  goes exactly halfway across a sheet of paper. If the sheet of paper has a width of  inches, how long is line segment ?

Possible Answers:

 

 

 

 

Correct answer:

 

Explanation:

Since the length of line segment  is half of , convert  to a mixed number. 



Then divide  by .



Then convert  to a mixed number. 




Example Question #532 : Plane Geometry

The Johnson family had an extension put onto their driveway that doubled the width of the driveway. If their driveway was originally  feet wide, how wide is their new driveway? 

Possible Answers:

 

 

 

Correct answer:

 

Explanation:

Since the original driveway was half the width of the new driveway, multiply  by .


Example Question #11 : How To Find Symmetry

Line segment  is twice as long as line segment  and half as long as line segment . If line segment  is  meters, how long is line segment ?

Possible Answers:

 

 

Correct answer:

 

Explanation:

Since line segment  is half the length of line segment  we need to divide  by .


Example Question #11 : How To Find Symmetry

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 #11 : Draw And Identify Lines And Angles, And Classify Shapes By Properties Of Their Lines And Angles

Do the black lines in the figure represent lines of symmetry? 

10

Possible Answers:

No

Yes

Correct answer:

Yes

Explanation:

When you are trying to decide if a line represents a line of symmetry you can think about folding the figure across that line. Once you make the fold, do all of the parts line up on top?

If yes, then the line represents a line of symmetry. 

If no, then the line does not represent a line of symmetry. 

10

These lines represent lines of symmetry because if you fold on the black lines, then one side would lay on top of the other and the parts would match up. 

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