ISEE Lower Level Quantitative : Plane Geometry

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

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Example Questions

Example Question #622 : Geometry

What is the width of the rectangle if the perimeter is  and the length is ?

 

Possible Answers:

Correct answer:

Explanation:

The formula for perimeter of a rectangle is 

To solve for the width we can plug our known values into the equation. 

Subtract  from both sides

Divide  by both sides

Example Question #582 : Geometry

What is the width of the rectangle if the perimeter is  and the length is ?

Possible Answers:

Correct answer:

Explanation:

The formula for perimeter of a rectangle is 

To solve for the width we can plug our known values into the equation. 

Subtract  from both sides

Divide  by both sides

Example Question #1841 : Common Core Math: Grade 3

What is the width of the rectangle if the perimeter is  and the length is ?

 

Possible Answers:

Correct answer:

Explanation:

The formula for perimeter of a rectangle is 

To solve for the width we can plug our known values into the equation. 

Subtract  from both sides

Divide  by both sides

Example Question #624 : Geometry

What is the width of the rectangle if the perimeter is  and the length is ?

 

Possible Answers:

Correct answer:

Explanation:

The formula for perimeter of a rectangle is 

To solve for the width we can plug our known values into the equation. 

Subtract  from both sides

Divide  by both sides

Example Question #1842 : Common Core Math: Grade 3

What is the width of the rectangle if the perimeter is  and the length is ?

 

Possible Answers:

Correct answer:

Explanation:

The formula for perimeter of a rectangle is 

To solve for the width we can plug our known values into the equation. 

Subtract  from both sides

Divide  by both sides

Example Question #391 : Plane Geometry

What is the area of a square if one side of the square is 6?

Possible Answers:

Correct answer:

Explanation:

If one side of a square is 6, then each of the four sides of the square are equal to 6. To find the area of a square, we multiply the length and the height together. The length is 6, and the height is 6, thus the equation we use is .

Remember the formula for the area of a quadrilateral is . For a square, one side is equal to both the length and the width.

Example Question #392 : Plane Geometry

One side of a square is  centimeters long. What is the area of the square?

Possible Answers:

Correct answer:

Explanation:

The formula for finding the area of a square is  , or, because this is a square, .

area =  centimeters  centimeters, or 

Example Question #3 : How To Find The Area Of A Square

A right triangle has a base of  and a height of .

What is the area of the rectangle made by 2 of these triangles aligned along the hypotenuse?

Possible Answers:

Correct answer:

Explanation:

If one combines the 2 identical triangles, their base and height become the length and width of the rectangle.

Area of a rectangle is:

In this case

Example Question #393 : Plane Geometry

A square has an area of .  What is the length of one side?

Possible Answers:

\dpi{100} 16\ inches

\dpi{100} 4\ inches

\dpi{100} 2\ inches

\dpi{100} 8\ inches

Correct answer:

\dpi{100} 4\ inches

Explanation:

You can find the area of a square by multiplying two sides together.  All of the sides of a square are equal.  In this case, \dpi{100} 4\times 4=16, so the length of all of the sides of the square is 4 inches.

Example Question #4 : Squares

Michaela drew th square below.

Screenshot_2015-03-25_at_3.13.25_pm

What is the area of the square?

Possible Answers:

112 square centimeters

48 square centimeters

144 square centimeters

12 square centimeters

100 square centimeters

Correct answer:

144 square centimeters

Explanation:

The area of a square can be found by multiplying the length of a side times itself.  The side length of the above square is 12 cm. By finding 12 x 12, we find that the area of the square is 144 cm. squared.

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