12.1. Exploring Symmetry http://www.ck12.org
- Every parallelogram has rotational symmetry.
- A rectangle has 90◦, 180 ◦, and 270◦angles of rotation.
- Draw a quadrilateral that has two pairs of congruent sides and exactly one line of symmetry.
- Draw a figure with infinitely many lines of symmetry.
- Draw a figure that has one line of symmetry and no rotational symmetry.
- Fill in the blank: A regular polygon withnsides has __ lines of symmetry.
Find all lines of symmetry for the letters below.
15.
16.
17.
18.
19.
- Do any of the letters above have rotational symmetry? If so, which one(s) and what are the angle(s) of rotation?
Determine if the words below have line symmetry or rotational symmetry.
- OHIO
22.MOW
23.WOW
24.KICK
25.pod
Trace each figure and then draw in all lines of symmetry.