Line symmetry is:
a two-dimensional figure has line symmetry if it is folded.
a line across a figure where the figure can be folded.
a two-dimensional figure is symmetrical if it has one.
a line segment that connects two vertices of a figure.
Line symmetry is also called reflection symmetry or __________.
mirror symmetry
The line that divides a figure into matching halves is called a __________.
line symmetry
diagonal line
mirror symmetry
symmetrical
A line of symmetry does not only have to be horizontal (↔) or vertical (↨). It can also be diagonal.
True
False
A _____________ is a line segment that connects two vertices of a figure and is inside the figure.
symmetry
slanted
diagonal
line symmetry
If a figure has one or more lines of symmetry, then it is _____________.
line of symmetry
symmetrical
diagonal
slanted
Asymmetrical figures have a line of symmetry.
True
False
The figueres shown are all asymmetrical figueres.
True
False
A rectangle has two lines of symmetry.
False
True
A triangle can have 0, 1, or 3 lines of symmetry.
False
True
Which triangle has no line of symmetry?
isosceles
scalene
equilateral
The equilateral triangle has ______ lines of symmetry.
3
2
1
The equilateral triangle has ______ equal sides.
1
2
3
