Question

which of the lines is a line of symmetry for the star?
a. ab only
b. ab and ef
c. cd only
d. cd and gh

Explanation:

A line of symmetry divides a figure into two mirror - image halves. For the given star - like figure, when we consider line CD and line GH:

• If we fold the figure along line CD, the two halves of the figure will coincide as the parts on either side of CD are mirror images of each other.
• Similarly, if we fold the figure along line GH, the two halves of the figure will also coincide as the parts on either side of GH are mirror images of each other.
• For line AB and line EF, folding the figure along these lines does not result in the two halves coinciding.

Answer:

D. CD and GH