Table of Contents

## How do you find the diagonal of a octagon?

## How many diagonals does a regular octagon have class 8?

## How do you find the number of diagonals?

**n(n-3)/2**

This formula is simply formed by the combination of diagonals that each vertex sends to another vertex and then subtracting the total sides. In other words, an n-sided polygon has n-vertices which can be joined with each other in nC2 ways.

## How many diagonals can a hexagon and octagon have?

**A hexagon has 9 diagonals.**

**A octagon has 20 diagonals**.

## What is the diagonal of a polygon?

**a line segment that joins two vertices of the polygon which are not already joined by an edge of the polygon**.

## How many diagonals are in a hexagon?

A regular hexagon has 9 diagonals.

## What is a diagonal Class 8?

A diagonal is

**a straight line that connects the opposite corners of the polygon through its vertex**.## What is the number of diagonals in a polygon of 12 sides?

54

In a polygon of 12 sides, no. of diagonals n(n−3)2=12(12−3)2=12×92=

**54**.## How many diagonals are in a triangle?

no diagonals

How many Diagonals Does a Triangle Have? A triangle has

**no diagonals**. We know that a diagonal always connects any two non-adjacent (non-consecutive) vertices of a polygon. Since all the vertices of a triangle are connected by sides, no diagonals can be formed.## Which polygon has equal diagonals?

**The rectangle of a rhombus**bisect each other and have equal diagonals .

## How many sides has a diagonal?

As applied to a polygon, a diagonal is a line segment joining any two non-consecutive vertices. Therefore, a quadrilateral has two diagonals, joining opposite pairs of vertices.

…

Polygons.

…

Polygons.

Sides | Diagonals |
---|---|

7 | 14 |

8 | 20 |

9 | 27 |

10 | 35 |

## How many diagonals does a circle have?

**infinite number of diagonals**.

## How many diagonals are in a rectangle?

two diagonals

Diagonals are the line segments that connect two non-adjacent vertices of polygons. Rectangles have

**two diagonals**that connect two opposite vertices. They are the same size.## How many diagonal are there in a pentagon?

5 diagonals

From the figure, it is clear that a pentagon has

**5 diagonals**.## What is the diagonal of a circle?

Diagonal of a square inscribed in a circle is

**equal to the diameter of the circle**.## What is a diagonal in hexagon?

**a line segment joining two non-adjacent vertices of a polygon**. A regular hexagon has six sides and six vertices. One vertex has three diagonals, so a hexagon would have three diagonals times six vertices, or 18 diagonals.

## How many diagonals are in a heptagon?

14 diagonals

The word heptagon is made up of two words, hepta meaning seven and gon meaning sides. There are

**14 diagonals**in a heptagon and in the given heptagon, the blue line segments represent the diagonals.## What is diagonal of a square?

**multiply the length of the side by the square root of 2**: d = a√2. So, for example, if the square side is equal to 5 in, then the diagonal is 5√2 in ≈ 7.071 in.

## What are adjacent sides for Class 6?

**If two sides share a common angle**, then they are called adjacent sides.