All Common Core: High School - Geometry Resources
Example Questions
Example Question #21 : Congruence
Which one of the following best describes a reflection?
Extend
Slide
Shrink
None of the answers
Flip
Flip
To answer this question first recall the different geometric definitions.
Translation: To move an object from its original position a certain distance without changing the object in any other way.
Transformation: Refers to any of the four changes that can be done to an object geographically. Transformations include, reflections, translations, rotations, and resizing the object.
Reflection: To flip the orientation of an object over a specific line or function.
Rotation: To rotate an object either clockwise or counter clockwise around a center point.
Therefore, the English term that best represents reflection is "flip".
Example Question #22 : Congruence
Which one of the following best describes a translation?
Turn
Shrink
Slide
Flip
Extend
Slide
To answer this question first recall the different geometric definitions.
Translation: To move an object from its original position a certain distance without changing the object in any other way.
Transformation: Refers to any of the four changes that can be done to an object geographically. Transformations include, reflections, translations, rotations, and resizing the object.
Reflection: To flip the orientation of an object over a specific line or function.
Rotation: To rotate an object either clockwise or counter clockwise around a center point.
Therefore, the English term that best represents translation is "slide".
Example Question #21 : High School: Geometry
Mrs. Johnson's classroom is organized in a grid pattern. In her classroom there are rows and columns of desks resulting in a total of desks. Which of the following depicts the resulting mathematical function of the situation, given Billy sits in desk and wants to move desks to the south and desk to the east.
Assume south represents a negative directional change in the axis and east represents a positive directional change in the axis.
To help solve this problem, look at the desks as a coordinate grid. Given that Billy currently sits in desk and assuming south represents a negative directional change in the axis and east represents a positive directional change in the axis, we can write the following transformation.
Since Billy wants to move 2 desks south or in the "down" direction then the mathematical notation would be,
Now since Billy also wants to move one desk to the east this results in the following,
From here, plug in the starting position which is and formulate the final transformation.
Example Question #23 : Congruence
Billy is flying a kite at the park. The kite starts touching the spool of string it is attached to. As Billy runs, the spool of string unravels and the kite flies feet in the air. Which geometric term describes this situation?
Rotation
Translation
Reflection
None of the other answers
Dilation
Translation
This question is applying mathematical and more specifically, geometric definitions to describe a real life situation. Geometric definitions usually correspond to objects in the 2 dimensional plane or 3 dimensional surface. Since the basket ball is the object in question, this problem is dealing with a the 3 dimensional space.
From here, recall what is given
"Billy is flying a kite at the park. The kite starts touching the spool of string it is attached to. As Billy runs, the spool of string unravels and the kite flies 20 feet in the air."
Recall that a translation is to move an object from its original position a certain distance without changing the object in any other way. Since the kit does not change size of shape but it does move a certain distance from where it originally started, this matches a translation.
Therefore, the correct answer is
"Translation"
Example Question #1 : Rotations And Reflections Of Rectangles, Parallelograms, Trapezoids, And Regular Polygons: Ccss.Math.Content.Hsg Co.A.3
Determine whether the statement is true or false:
The following image can be divided multiple ways to result in a reflected image.
False
True
False
Looking at the statement and the image given, it is seen that the object is a trapezoid.
A trapezoid has two bases of differing lengths and two side pieces of equal length in this particular case.
For an object to be divided into images that can be reflected onto one another, the images must be identically mirrored.
To identify the possible solutions, draw the lines of symmetry.
Only one line of symmetry could be drawn to allow for two images of the trapezoid to be reflected over that line. The trapezoid cannot be divided in any other way that will result in a reflected image.
Therefore, the original statement is false.
Example Question #23 : High School: Geometry
Given a hexagon, how many lines of symmetry exist?
Twelve
Two
Three
Four
Six
Six
Recall that a hexagon is a six sided figure. Now recall that a line of symmetry creates two mirrored, identical figures which is also known as a reflection.
Knowing these two pieces of information draw the image of the hexagon and the lines of symmetry
Counting up these lines results 6 lines of symmetry.
Therefore, the answer is 6.
Example Question #24 : High School: Geometry
A cylinder is composed of two circular bases. For one base to be carried onto the other, what geometric transformation must occur?
Rotation and Translation
Extension
Rotation
Translation
All of the answers are correct.
Translation
Since a cylinder is composed of two, identical circular bases that are separated by the height of the cylinder, the transformation that must occur to have one carried onto the other is a translation. Recall that a translation is the sliding of an object without changing its size or shape. Therefore, for the one base to be carried onto the other, translation is the geometric transformation that must occur.
Example Question #4 : Rotations And Reflections Of Rectangles, Parallelograms, Trapezoids, And Regular Polygons: Ccss.Math.Content.Hsg Co.A.3
If the rectangle is reflected across the x-axis, what is the resulting image?
None of the other answers.
In order to create the resulting image of a reflection first recall what a reflection is.
Reflection: To flip the orientation of an object over a specific line or function.
In this specific situation the line of reflection is the x-axis.
The original image is,
When the image is reflected across the x-axis result in,
This is the correct answer.
Example Question #25 : High School: Geometry
Given a trapezoidal based prism how can one base be carried onto the other?
None of the answers.
Extension
Rotation
Reflection
Translation
Translation
Since a trapezoidal based prism is composed of two, identical trapezoidal bases that are separated by the height of the prism, the transformation that must occur to have one base carried onto the other is a translation. Recall that a translation is the sliding of an object without changing its size or shape. Therefore, for the one base to be carried onto the other, translation is the geometric transformation that must occur.
Example Question #26 : High School: Geometry
Determine whether the statement is true or false:
Reflections and rotations never result in the same image.
False
True
False
To determine whether the statement is true or false, identify any example that would make the statement false.
"Reflections and rotations never result in the same image."
Imagine a square that exists in quadrant two. When this image is reflected across the y-axis it is still a square that is now in quadrant one. When the square from quadrant two is rotated around the origin, it results in the same image in quadrant one. Therefore, it is possible for a reflection and rotation to result in the same image.
Thus, the statement "Reflections and rotations never result in the same image." is false.