Transformations

Reflections

Name: ______________________________Date: ______________Score: ______ / 20

1.
When you reflect a shape in a mirror line, the reflected shape is:
1. Abigger than the original
2. Bsmaller than the original
3. Cthe same size as the original
4. Da different shape
2.
A point is 5 squares from a mirror line. How many squares from the line is its reflection?
3.
Reflecting a shape makes it bigger.
True False
4.
A mirror line that goes at a slant is called a:
1. Ahorizontal mirror line
2. Bvertical mirror line
3. Cdiagonal mirror line
4. Dflat mirror line
5.
On a number line, a vertical mirror line is at 8. A point is at 5. Its reflection is the same distance the other side. Where is the reflection?
6.
A point at x = 3 is reflected in a vertical mirror line on the y-axis (x = 0). What is the x-coordinate of the reflection?
7.
The point (2, 3) is reflected in a vertical mirror line at x = 4. It is 2 squares left of the line, so the reflection is 2 squares right. The height stays the same. What are the reflection's coordinates?
1. A(6, 3)
2. B(6, -3)
3. C(2, 3)
4. D(4, 3)
8.
A point is 3 squares above a horizontal mirror line. How many squares below the line is its reflection?
9.
The point (3, 4) is reflected in a horizontal mirror line on the x-axis. How far across (x) stays the same, and the height flips. Where does it go?
1. A(3, -4)
2. B(-3, 4)
3. C(3, 4)
4. D(-3, -4)
10.
Which tool can help you reflect a shape accurately?
1. Aa calculator
2. Btracing paper or a mirror
3. Ca stopwatch
4. Da thermometer
11.
A vertical mirror line is at x = 5. Put these points in order of their distance from the mirror line, closest first.
Write the order (closest to the mirror line first) in the boxes:
- ?x = 2
- ?x = 4
- ?x = 0
- ?x = 3
12.
Which of these is NOT one of the mirror lines used in this chapter?
1. Ahorizontal
2. Bvertical
3. Cdiagonal
4. Dcircular
13.
How many lines of symmetry does an isosceles triangle have?
14.
A regular hexagon has 8 lines of symmetry.
True False
15.
How many lines of symmetry does a regular hexagon have?
16.
A square has 3 lines of symmetry.
True False
17.
How many lines of symmetry does a scalene triangle have?
18.
A regular hexagon has 6 lines of symmetry.
True False
19.
Which shape has more lines of symmetry, an isosceles triangle or a rectangle?
1. Aisosceles triangle
2. Brectangle
20.
Which shape has more lines of symmetry, an equilateral triangle or a regular pentagon?
1. Aequilateral triangle
2. Bregular pentagon

Answer key

Transformations — Reflections

1.C. the same size as the original
2.5
3.False
4.C. diagonal mirror line
5.11
6.-3
7.A. (6, 3)
8.3
9.A. (3, -4)
10.B. tracing paper or a mirror
11.x = 4, x = 3, x = 2, x = 0
12.D. circular
13.1
14.False
15.6
16.False
17.0
18.True
19.B. rectangle
20.B. regular pentagon