Practice Page
Directions: Read each question carefully. Choose the best answer. All questions take place in a plane.
1.
Given figure ABCD and line of reflection m.
Which of the choices listed below could be the first step in the construction of the reflected image of ABCD in line m?
refprac1
 
Choose:
Copy the length of point A from line m.
Construct the perpendicular bisector of line m.
Construct a perpendicular from point A to line m.
Bisect the segment connecting point A to point C.

 

 

2.
In an attempt to construct the perpendicular bisector of AB, a reflective device is placed on the segment. When will you know that you placed the device on the perpendicular bisector of the segment?

miraprac1
 
Choose:
When you see the separate reflections of the points A and B.
When you see the reflection of point A lying on top of point B.
When the shadow in front of the device covers point A.
When you see the reflection of two separate segments.

 

 

3.
A figure was drawn on a sheet of paper. The paper was folded and the image of the figure was traced as seen through the paper. A ruler is used to create a segment connecting each vertex with its image.
How can these ruler-made segments be used to verify that the fold in the paper is the line of reflection?
paperfold
 
Choose:
Measure the length of each segment. The lengths should all be equal to one another.
Measure the length from a vertex to the fold line and from the fold line to its image. These two lengths should be equal.
Measure the vertical length separating each of the segments. These measures should be equal.
Measure the length of each of the segments. This measure should equal the length of the perimeter of the figure.

 

 

4.
Given ΔABC and its reflection ΔA'B'C'. Your task is to CONSTRUCT the line of reflection.
Which of the choices listed below will be the first step in this construction process?
PracReflect
 
Choose:
Construct a perpendicular bisector.
Construct a perpendicular from point C to B'C'.
Bisect B'C'.
Draw a segment connecting C to C'.

 

 

5.
An angle bisector is constructed using paper folding. The paper containing the angle is folded so that the rays of the angle overlap one another. When unfolded, the fold line is the angle bisector. Which of the following statements can be used to explain why this works?

Choose:
pracpaperfold
 
The fold line is a perpendicular bisector.
The fold line is a line of reflection.
The fold line is parallel to the rays of the angle.
Points on the fold line are the same distance from the vertex.

 

 

6.
Given figure ABCD and line of reflection m.
When constructing the reflection of ABCD in line m, it will be necessary to construct a perpendicular from each vertex of ABCD to line m.

Choose:
True
False
refprac1

 

 

7.
Courtney is folding an equilateral triangle to find a line of reflection. The triangle will fold onto itself along this line, so as to match exactly. Which of the following choices will be true?
pracequi
 
Choose:
The fold line will bisect the vertex angle of the triangle.
There will be three fold lines that will be lines of reflection.
The fold line will be perpendicular to one side of the triangle.
All of the above will be true.

 

 

8.
Jack decides to construct the reflection of ABCD in line m by using tracing paper.
He traces ABCD and line m with the tracing paper. He then flips the tracing paper over. What should he do next?
refprac1
 
Choose:
He should fold line m on the tracing paper upon itself to form a perpendicular.
He should measure the distance from point A to line m.
He should place the tracing paper so line m lies on top of itself.
He should use a straightedge to draw a line parallel to line m on the tracing paper.

 

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