2D shapes

Symmetry

Name: ______________________________Date: ______________Score: ______ / 20

1.
A line of symmetry folds a shape into two halves that...?
1. Amatch exactly (mirror images)
2. Bare different sizes
3. Care both circles
2.
A line of symmetry that goes straight up and down is...?
1. Ahorizontal
2. Bvertical
3. Cdiagonal
3.
A line of symmetry that goes straight across, side to side, is...?
1. Avertical
2. Bhorizontal
3. Cdiagonal
4.
A line of symmetry that goes corner to corner at a slant is...?
1. Adiagonal
2. Bvertical
3. Chorizontal
5.
How many lines of symmetry does a square have?
6.
How many lines of symmetry does a rectangle (not a square) have?
7.
How many lines of symmetry does an equilateral triangle have?
8.
How many lines of symmetry does a regular octagon have?
9.
How many lines of symmetry does a regular hexagon have?
10.
How many lines of symmetry does a regular pentagon have?
11.
If a shape can be folded in half exactly onto itself along a line, that line is a line of symmetry.
True False
12.
For a regular polygon, the number of lines of symmetry is equal to...?
1. Ahalf the number of sides
2. Balways 4
3. Cthe number of sides
13.
A square has 8 lines of symmetry.
True False
14.
A regular octagon has 8 lines of symmetry.
True False
15.
Which of these shapes has the most lines of symmetry?
1. Asquare
2. Brectangle
3. Cequilateral triangle
16.
When checking for lines of symmetry, you should look for a vertical line, a horizontal line and the two...?
1. Adiagonal lines
2. Bcurved lines
3. Cnumber lines
17.
A rectangle has both a vertical and a horizontal line of symmetry.
True False
18.
How many equal halves does one line of symmetry make?
19.
A parallelogram with slanted sides that are not all the same length has no lines of symmetry.
True False
20.
The parallelograms that have diagonal lines of symmetry all have...?
1. Aall sides the same length
2. Bcurved sides
3. Conly 3 sides

Answer key

2D shapes — Symmetry

1.A. match exactly (mirror images)
2.B. vertical
3.B. horizontal
4.A. diagonal
5.4
6.2
7.3
8.8
9.6
10.5
11.True
12.C. the number of sides
13.False
14.True
15.A. square
16.A. diagonal lines
17.True
18.2
19.True
20.A. all sides the same length