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HOW TO FORM CIRCLE,CHORD, RADIUS AND DIAMETER,WHAT IS PIE AND FORMMULLA OF THE PERIMETER OF A CIRCLE.

Ankit Bhardwaj
10/10/2019 0 0

                       HOW TO FORM CIRCLE,CHORD, RADIUS AND DIAMETER

                                                      WHAT IS π

                        FORMULLA OF THE PERIMETER OF A CIRCLE.

[THIS SCRIPT GIVEN BELOW DEPICTS MY WAY OF TEACHING AND USING THIS SCRIPT FOR COMMERCIAL USE MUST NOT BE WITHOUT PRIOR PERMISSION FROM ME.][THIS SCRIPT IS FOR ONLINE USERS ONLY AND FOR OFFLINE USERS ONLY THE PRESENTERS MONOLOGUE WILL BE THERE.]

*EVERYTHING INSIDE THE BRACKETS IS HAPPENING IN THE BACKGROUND.

[The presenter arrives on a antique bicycle with big wheels. background has a road with trees and flowers both side. And there is space left on the top of the presenter, who is standing at the left side of the screen and other characters will arrive at right side {the space on the top will have definition, formula and figures explained below by the animated old man and presenter.}]

Presenter- Hello! Byju’s learning army. Oh yeah I can see those eyes so passionate to discover new milestones for exciting concept.

[Suddenly sun, moon, all planets, wheels, rings and etc starts dropping from all the directions. And the presenter tries to avoid all of them and falls on the floor as he slips due to marbles on the floor.]

 Presenter- Ouch! That hurts. You too have fallen like this at some time in the past so don’t Rolf. All of you have guessed right that today’s topic is about “circle”.

[Now the presenter gets skates and he starts moving in the forward direction (in the background there will be animation of an old man who is reading a book and dressed like a scholar also he has a long stick.)]

[Animation of circle with eyes (eyes are rolling as the presenter will point on circle’s different parts)]\

[As the presenter is says the below written monologue, on the top of his head a hand with pen draws the figure explained below.]

Presenter- Let’s try to form a circle. It’s quite easy. Just make a contact of paper and paper and you get a point, we call this point ‘Center’. Now from that center draw a line segment of certain length. Continue this process and make line segments in all directions from the same origin (center). Now when we join all the end points of the line segments we will get a circle. The centre will be at equal distance from all the points joined together which are on the boundary or circumference of the circle.

Old man (intervenes) and says aloud that do you know that that to form a unique circle we will only need three points and circles is not just your syllabus but our life rolls around it.

Presenter- True Sir! Let us name our center as ‘O’ and take a point ‘P’ on the circumference, we can make infinite lines like this and they are termed as Radius.

Old Man {again interrupts the presenter and hits him with the stick.}- Why don’t you tell them that if we draw another radius making 180 degree with the former one we get ‘diameter’ which is of course twice the length of the radius.

[Presenter gets annoyed and calls the police asking them to arrest an intruder in his class. Old Man ran away from the video (by snatching away the skates of the presenter)]

Presenter- lol! That was a prank I only have incoming in my cell.  Oh he ran away with my skates never mind too tired. [Figures are being drawn by a hand as the presenter starts telling about the chord. ] Coming back mates now we know terms like circle, center, diameter, radius, and circumference. Another important part is our ‘Chord’. Chord is a line which is drawn inside the circle and both end points of the line rest on the circumference.

[Many chords with center and diameter have to be drawn by the animation. Circle, diameter, chords and center all should be in different colors.]

[Old man returns on skates and says]

Old man- Genius you should also know that the biggest chord of the circle is diameter and Length of the chord increases as its perpendicular distance with centre decreases.

Presenter – Is that all, Can I teach now?

Old man- Sure! Kiddo. Am I interrupting your class?

Presenter- Forget it! Guy’s you should also know that only one chord passes through the centre of circle and that’s our diameter.

[ Entry of a big heavy π which has literally crushed our presenter but than aryabahtta arrives and he not only lifts the pie with on hand but crushes it between his hands and when he opens his palms fraction of 22/7 appears and the fraction ran away with fear , also aryabhatta disappears.]

Presenter - Thank you god to send him again for rescuing us from π.

Old man- {again interrupts by saying} do you know Aryabhatta an Indian scholar discovered the closest value of pie which is 22/7.

Presenter – Okay then, let’s try this together sir? Of course the closest as π is an irrational number which cannot be written in the form of a fraction. Sir you want to add something.

Old man – Yeah! Do you remember that a fraction is a value that can be written in the form of p/q form where ‘q’ is not equal to 0.

[Animation of the definition of π.]

Presenter- Right. Actually the exact value of π is [Circumference of the circle/ Diameter of the circle]

[PRESENTER pulls out the line {diameter of the circle} from the animation and puts it with pie with a multiplication sign in between them]

Old Man- Here we go. Now this is the formula that we used to mug up but see how clearly one can know it if he knows the exact definition of π.

Presenter- absolutely sir so circumference of a circle is equal to the product of pie and the diameter of the circle. Or we can say twice the product of pie and radius of the circle.  2* radius = diameter {explained above.}

Old Man- We did that better together son. And lots of blessings to my students, bye everyone.

Presenter- true sir. But I thought they are my students. Okay than bye mates we will catch up in the next video where we would discuss other brilliant concepts of circle. [Both disappears and circle on the screen which winks with a smile.]

The end

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