# How many lines of symmetry does a 12 A gon have?

Table of Contents

## How many lines of symmetry does a 12 A gon have?

A regular dodecagon is a figure with sides of the same length and internal angles of the same size. It has twelve lines of reflective symmetry and rotational symmetry of order 12.

## What is a 12 sided pentagon shape called?

dodecagon

A dodecagon is a 12-sided polygon.

**What are the lines of symmetry for a pentagon?**

5Pentagon / Line of symmetry

**How many angles are in a 12 Gon?**

12 angles

Dodecagon is a 12-sided polygon with 12 angles and 12 vertices. The sum of the interior angles of a dodecagon is 1800°. The perimeter of a dodecagon is calculated with the formula: s × 12.

### What are the angles of a 12-sided polygon?

Each interior angle of a regular dodecagon is equal to 150°. Each exterior angle of a regular dodecagon is equal to 30°. There are 54 diagonals in a dodecagon.

### What are the angles of rotation for a 12-gon?

In math terms, the sum of the external angles of a regular polygon is 360 degrees. Here, we have a 12-sided regular polygon which rotates until the image coincides with the preimage. That is 360/12 = 30 degrees (the outside angle).

**What are the angles of a 12 sided polygon?**

**Can a pentagon have 2 lines of symmetry?**

A pentagon has five lines of symmetry. We know this because a pentagon can be divided in half in five different ways. Each fold is a line of… See full answer below.

#### How many line segments are in a pentagon?

5 line segments

A pentagon has 5 line segments.

#### What is sum of Measure 12-gon?

Summary: The sum of the measures of the interior angles of a 12-gon is 1800°.

**What is the exterior angle of a 12-gon?**

30°

Properties of a dodecagon Here are the properties of a 12-sided shape: Each interior angle of a regular dodecagon is equal to 150°. Each exterior angle of a regular dodecagon is equal to 30°.

**What is a line segment for a pentagon?**

A line segment drawn from the center of a regular pentagon perpendicular to a side is called the apothem. The apothem is used to calculate the area of a pentagon. The area, A , of a pentagon is the space inside it’s five straight sides.

## What is the interior angle of 12-gon?

150°Dodecagon / Internal angle

## What is the sum of a 12-gon?

1800°

The sum of the interior angles of a dodecagon is 1800°.

**What is the sum of the interior angles of a 12-gon?**

1800°Dodecagon / Sum of interior angles