Different Parts of Circle |

A circle is a set points that are all the same distance from a given point called the center.

The distance from the center of the circle to any point on the circle itself.The symbol r is used for the radius.

__CIRCLE:__A circle is a set points that are all the same distance from a given point called the center.

__Radius:__The distance from the center of the circle to any point on the circle itself.The symbol r is used for the radius.

Drawing of Perfect Circle with Help of Geometry Box`s Compass |

The length of a line that passes across a circle through the center. The diameter is twice the size of the radius. the symbol d is used for the diameter.

The circumference of a circle is the distance around the circle.To determine the circumference of a circle, use either of these two equivalent formulas:

2 */\* r or /\*d (r = Radius , d = Diameter , /\ (Pi) = 3.14 or 22 / 7).

__Diameter:__The length of a line that passes across a circle through the center. The diameter is twice the size of the radius. the symbol d is used for the diameter.

__Circumference:__The circumference of a circle is the distance around the circle.To determine the circumference of a circle, use either of these two equivalent formulas:

2 */\* r or /\*d (r = Radius , d = Diameter , /\ (Pi) = 3.14 or 22 / 7).

Drawing of Perfect Circle with Help of Geometry Box`s Compass |

The area of a circle is the space its surface occupies. To determine the area of a circle, use this formula:

Area = /\* r ^ 2 or /\ *r*r

__Area Of A Circle:__The area of a circle is the space its surface occupies. To determine the area of a circle, use this formula:

Area = /\* r ^ 2 or /\ *r*r

**3D Animation Showing Drawing of Circle.**

__Quadrilateral:__

Different Types of Quadrilaterals and Polygons like Pentagon,Hexagon and Octagon |

**In Euclidean plane geometry, a quadrilateral is a polygon with four sides (or edges) and four vertices or corners. Sometimes, the term quadrangle is used**

The interior angles of a simple quadrilateral A B C D add up to 360 degrees of arc.

There are special types of quadrilateral:

Types of Quadrilateral

Some types are also included in the definition of other types! For example :

1) Parallelogram

2) Rhombus

3) Rectangle

4) Square

5) Trapezium

The interior angles of a simple quadrilateral A B C D add up to 360 degrees of arc.

There are special types of quadrilateral:

Types of Quadrilateral

Some types are also included in the definition of other types! For example :

1) Parallelogram

2) Rhombus

3) Rectangle

4) Square

5) Trapezium

__1) PARALLELOGRAM:__Picture of Parallelogram |

**Parallelogram is a quadrilateral ( Four sided closed shape ) whose two opposite sides are equal and parallel ,The opposite angles are the same size, but they don`t have to be the right angles. Parallelogram looks like a rectangle leaning to one side.**

Area = Base * Height

The base is the size of the side on the bottom. The height (or altitude) is the size of a perpendicular line drawn from the base to the side opposite it. The height of a rectangle and a square is the same as the size of its vertical side.

Area = Base * Height

The base is the size of the side on the bottom. The height (or altitude) is the size of a perpendicular line drawn from the base to the side opposite it. The height of a rectangle and a square is the same as the size of its vertical side.

Drawing Picture of Parallelogram on Paper |

Perimeter = sum of all four sides

in case of Parallelogram (opposite sides are equal in length)

Perimeter = 2 ( Length + width)

Perimeter = sum of all four sides

in case of Parallelogram (opposite sides are equal in length)

Perimeter = 2 ( Length + width)

**3D Animation Showing Drawing of Parallelogram.**

2) RHOMBUS:2) RHOMBUS:

Picture of Rhombus |

**Rhombus is a parallelogram where all for sides are equal in size but they don`t have to be right angles.**

Drawing Picture of Rhombus on Paper |

__3) RECTANGLE:__

Picture of Rectangles |

**Rectangle is a quadrilateral ( Four sided closed shape ) whose two opposite sides are equal and parallel having angles of 90 degrees on all four sides.**

Area = Base * Height

The base is the size of the side on the bottom. The height (or altitude) is the size of a perpendicular line drawn from the base to the side opposite it. The height of a rectangle and a square is the same as the size of its vertical side.

Area = Base * Height

The base is the size of the side on the bottom. The height (or altitude) is the size of a perpendicular line drawn from the base to the side opposite it. The height of a rectangle and a square is the same as the size of its vertical side.

Picture of Rectangles |

The area formula for the rectangle and square may be expressed in an equivalent from as:

Area = Length * Width

Perimeter = sum of all four sides

in case of rectangle (opposite sides are equal in length)

Perimeter = 2 ( Length + width)

The area formula for the rectangle and square may be expressed in an equivalent from as:

Area = Length * Width

Perimeter = sum of all four sides

in case of rectangle (opposite sides are equal in length)

Perimeter = 2 ( Length + width)

Drawing Picture of Rectangle on Paper |

**3D Animation Showing Drawing of Rectangle**

__4) SQUARE:__Picture of Squares |

**Square is a quadrilateral ( Four sided closed shape ) whose all four sides are equal and parallel having angles of 90 degrees on all four sides.**

Area = Base * Height

The base is the size of the side on the bottom. The height (or altitude) is the size of a perpendicular line drawn from the base to the side opposite it. The height of a rectangle and a square is the same as the size of its vertical side.

Area = Base * Height

The base is the size of the side on the bottom. The height (or altitude) is the size of a perpendicular line drawn from the base to the side opposite it. The height of a rectangle and a square is the same as the size of its vertical side.

Drawing Picture of Squares on Paper |

The area formula for the rectangle and square may be expressed in an equivalent from as:

Area = Length ^2 ( in case of square Length = Width)

Perimeter = sum of all four sides

in case of square (opposite sides are equal in length)

Perimeter = 4* Length (Length = Width)

The area formula for the rectangle and square may be expressed in an equivalent from as:

Area = Length ^2 ( in case of square Length = Width)

Perimeter = sum of all four sides

in case of square (opposite sides are equal in length)

Perimeter = 4* Length (Length = Width)

__5) TRAPEZIUM:__Picture of Trapezium |

**It is a Quadrilateral (four sided polygon) which have all four sides are not equal and all four angles are not equal and not 90 Degrees.**

Drawing Picture of Trapezium on Paper |

**3D animation showing drawing of Trapezium**

**PENTAGON:**

Picture of Pentagon |

**The closed plane (flat) figure Polygon which have five sides. To find the perimeter of a Pentagon ,add the lengths of the all five sides.**

**3D Animation Showing Drawing of Pentagon**

HEXAGON:

HEXAGON:

Picture of Hexagon |

The closed plane (flat) figure Polygon which have six sides. To find the perimeter of a Hexagon ,add the lengths of the all six sides.

The closed plane (flat) figure Polygon which have six sides. To find the perimeter of a Hexagon ,add the lengths of the all six sides.

**3D Animation Showing Drawing of Hexagon.**

OCTAGON:

OCTAGON:

Picture of Octagon |

**The closed plane (flat) figure Polygon which have Eight sides. To find the perimeter of a Octagon ,add the lengths of the all Eight sides.**

Different Types of Quadrilaterals and Polygons like Pentagon,Hexagon and Octagon |

Different Types of Quadrilaterals |

I want discuss all of these into a short note as In General, Quadrilateral means four sides but in geometry we can say any four sided shape is quadrilateral with a condition sides have to be straight and it has to be 2 dimensional. example a square, rhombus, trapezium and rectangle are also parallelograms.

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