 Symmetry Practice Terms of Use    Contact Person: Donna Roberts  1.
How many lines of symmetry does a square possess?

Choose:
 1 2 3 4 2.
Which quadrilateral has one, and only one, line of symmetry?

Choose:
 rectangle isosceles trapezoid square parallelogram 3.
Which quadrilateral has no line symmetry, but has rotational symmetry of order 2?

Choose:
 rectangle parallelogram trapezoid kite 4.
a) Which of the following figures has rotational symmetry of order 3?
Choose:
 square parallelogram pentagon equilateral triangle b) What is the angle of rotational symmetry of an object described as having symmetry of order 3?
Choose:
 90º 120º 72º 180º

5.
If a figure has rotational symmetry of order 6, what is the figure's angle of rotation?

Choose:
 120º 90º 60º 30º 6.
The car wheel shown at the right has both line and rotational symmetry.
a) State the number of lines of symmetry.
Choose:
 6 5 3 4

Choose:

b)
State the degree measure of the angle of rotation.
 120º 90º 72º 60º 7.
A segment equal in length to the radius of a circle is repeated around the circle, forming chords from end to end. Two repetitions of the segment are shown at the right.
a) How many segments will be able to be placed in this manner around the circle?
Choose:
 8 7 6 5 b)
What will be the angle of rotation of the figure formed by the repetition of the segment?
Choose:
 45º 60º 72º 120º

8.
ΔABC is an isosceles triangle with
AC = BC.
What is the equation of the line of symmetry of this triangle?

Choose:
 y = 4 x = 4 y = x + 4 y = x + 2 9.
ABCD is a square. The grid pattern in the interior of the square forms a series of small squares.
a) How many lines of symmetry will ABCD possess, including the internal grid pattern?
Choose:
 1 2 0 4 b)
Under rotational symmetry, what is the angle of rotation of ABCD, including the internal grid pattern?

Choose:
 60º 90º 120º 180º

10.
ΔABC is an equilateral triangle. The triangles in the interior of ΔABC are also equilateral triangles.

Which of the following statements is true regarding this entire diagram? Choose:
 It has line reflection, and rotational symmetry of 120º. It has line reflection, but no rotational symmetry. It has no line reflection, but has rotational symmetry of 120º. It has no line reflection, and no rotational symmetry. 