ISEE Lower Level Quantitative : Plane Geometry

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

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Example Questions

Example Question #11 : Lines

Mr. Thomas' rectangular garden has a width of  feet. The length of his garden is exactly half the distance of the width of the garden. How long is the length of Mr. Thomas' garden? 

Possible Answers:

 

 

 

Correct answer:

 

Explanation:

The length of Mr. Thomas' garden is exactly half the distance of the width of the garden.

The width of the garden is  feet.

Thus, the length is equal to,

 

Example Question #1511 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

Celeste is Debra's  year old daughter. Both Debra and Celeste measured their height on the wall. Celeste was surprised to find out that she is exactly half the height of her mother. If Debra is  feet tall, how tall is Celeste?  

Possible Answers:

  

 

 

Correct answer:

Explanation:

Debra is  feet tall. Celeste is half the height of her mother Debra.

Thus, to find Celeste's height, divide  in half. 

The solution is:

Step one: convert  into an improper fraction.

                           


Step two: divide  by .



Step three: express  in feet as a mixed number. 



Example Question #11 : Lines

Mr. Lam is planning on painting a rectangular wall in his living room. Before he starts painting, he decided to take a few measurements of the wall. He finds out that the width of the wall is twice the measurement of the height of the wall. If the width of the wall is  feet, what is the height of the wall?   

Possible Answers:

  

 

Correct answer:

  

Explanation:

Since the height of the rectangular wall is half the length of the width, divide  by  

The solution is:



Check:



Example Question #12 : 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 : How To Find Symmetry

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 #13 : 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 : How To Find Symmetry

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

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 #16 : How To Find Symmetry

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 #1522 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

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 .


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