Question

Pretest: Unit 3

Question 2 of 33
Which of the following best describes reflectional symmetry?
A. The quality a design has if its left and right halves are mirror
images of each other
B. The quality a design has if the top and bottom halves are mirror
images of each other
C. The quality a design has if it maintains some of its characteristics
when it is rotated about an axis lying in its plane
D. The quality a design has if it maintains all of its characteristics
when it is reflected over an axis lying in its plane
SUBMIT

Answer 1

Step-by-step explanation: The answer is D. The quality a design has if it maintains all of its characteristics when it is reflected over an axis lying in its plane. This is the definition of reflectional symmetry. A and B are examples of reflectional symmetry over a vertical or horizontal axis, but not the general case. C is the definition of rotational symmetry.