8
QuizMultiple Choice

Symmetry — Quiz

Question 8 • Mathematics I

Which statements are true about the lines of symmetry of a regular pentagon? Choose three correct answers.

Answer
A
Every line bisects a side.
B
Every line connects the midpoints of 2 sides.
C
Every line connects two vertices.
D
Every line is perpendicular to a side.
E
Every line bisects a vertex angle.

Explanation

Each symmetry line of a regular pentagon passes through one vertex and the midpoint of the opposite side. So it bisects that side and is perpendicular to it, making A and D true. The line also splits the angle at the vertex into two equal angles, so E is true. It does not connect two vertices or the midpoints of two sides.

AI-written and checked against the verified answer.

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