How many lines of symmetry does a Pentagon have? <img src="/api/images/lines-of-symmetry-in-regular-pentagon.png" alt="Quiz image asking how many lines of symmetry a pentagon has, showing multiple choice answers including 4, 5, 6, and 0" width="300" height="200" loading="lazy" decoding="async" class="rounded border border-gray-300 mx-auto my-4" />

Question: How many lines of symmetry does a Pentagon have?

Step 1: Understand what symmetry means

A line of symmetry is an imaginary line that divides a shape into two identical halves, such that one half is the mirror image of the other.

Step 2: Define the type of pentagon

The answer depends on whether the pentagon is regular (all sides and angles equal) or irregular. This question refers to a regular pentagon.

Step 3: Analyze a regular pentagon

• A regular pentagon has 5 equal sides and 5 equal angles.
• Each line of symmetry passes through one vertex and the midpoint of the opposite side.

Step 4: Count the symmetry lines

There are exactly 5 such lines in a regular pentagon — one for each vertex and opposite side pair.

Final Answer: 5 lines of symmetry

Note: An irregular pentagon may have fewer or no lines of symmetry depending on the length and angle variations.