Total surface area and volume of frustum of a cone: derivation, R B Classes

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Class 10 maths chapter 1 Real Numbers • Class 10 Maths Chapter...
Class 10 maths chapter 2 Polynomials • Class 10 maths chapter...
Class 10 Maths Chapter 3 Pair Of Linear Equations In Two Variables
• Class 10 Maths Pair of...
Class 10 Maths Chapter 4 Quadratic Equations
• Quadratic Equation (Na...
Class 10 Maths Chapter 5 Arithmetic Progressions
• Introduction Of AP Ar...
Class 10 Maths Chapter 6 Triangles
• NCERT Solutions for cl...
Class 10 Maths Chapter 7 Coordinate Geometry
• Q1Class 10 Maths Impor...
Class 10 Maths Chapter 8 Introduction to Trigonometry
• Class 10 Maths trigon...
Class 10 Maths Chapter 9 Some Application Of trigonometry
• Applications of trigon...
Class 10 Maths Chapter 10 Circles
• Two tangents TP and TQ...
Class 10 Maths Chapter 12 Areas Related to Circles
• Q1 Class 10 Maths CBSE...
Class 10 Maths Chapter 13 Surface Area And Volume
• Q1 Class 10 Maths Surf...
Class 10 Maths Chapter 14 Statistics
• Q1 Class 10 Maths To F...
Class 10 Maths Chapter 15 Probability
• Probability Class 10 M...
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[@siddharthpandya6972]

Just one word: Perfection

[@pramilajain9953]

found this video today after about 3 years........best explanation ever seen..... much good than teachers at other online platforms

[@divyapandey5265]

Sir aap bahut accha padha te hai Aur aap ques. Bhi acche wale bata te hai Thanks Sir

[@rbclasses]

For CBSE Class 10 Maths 5 Latest Sample Papers: www.vidyakul.com/teacher/r-b-gautam If you have any query call at : R B Classes 9058347366

[@factx00754]

Sir, answer h/2 hai kya?

[@anshumansrivastava6084]

ye kon si class k kon se chapter ka hai ?

[@KingGaming77]

@@anshumansrivastava6084 class 10 chapter 13

[@parveen3824]

Sir i must say old is gold. Jitna accha aapney samjhaya itna achha to aaj kal ki technology based classes bhi nhi samjha sakti

[@anshumansrivastava6084]

100% galat

[@nivratimm8809]

I agree

[@avanipatel1954]

Outstanding video Sir You are the real maths teacher I very much like your teaching style

[@PrasannGandhi]

Very good teaching sir !! Keep it up!!👍👍

[@shrishkumarsinha4504]

Sir, answer was rh ÷ (h + r); where r is Radius of cone and h is height of cone??? By using similarity of the triangles formed by RADIUS OF SPHERE and RADIUS OF CONE

[@AnkitSingh-y8u2u]

Sir ap ka samjaya his Agya sir thanks sir❤❤❤❤❤❤❤❤❤❤🎉🎉😄😄🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏😄🙏🙏🙏🙏🙏🙏🙏❤️❤️❤️❤️❤️❤️❤️❤️❤️🕯️❤️🏫🏫🏫🏫

[@Jkexamwarrior]

I subscribed this channel 3 years back when i was in 12th and now i m preparing for competitive exams.

[@mahinderpal1062]

Thank you so much sir!!!! Apse acha toh koi pdha hi nhi skta

[@unhuman537]

Wow... You explained it in very easy and nice way... Superb 😀👏👏

[@parthgangwar1921]

Thank you very much sir🥰..... You are one of the best teacher I found on the internet.. Love you sir😊

[@sjsfday]

First of all, Thanku sir I am very glad to see such a great explanation about FRUSTUM. This is so much helpful for me.

[@ayushsinghrajput3084]

Thanku 💕 so much sir concept now in my hand 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

[@akshaypise5284]

Absolute perfection . Never ever imagined similarity will be used to prove this fromula .

[@AsadKhan-ei5su]

Thank you sir your explanation is very awesome 👍👍

[@KingGaming77]

i am searching for a video like this i am confused in volume calculation THANK YOU SIR FOR THIS VIDEO

[@kyrmotivation9924]

No words for your explanation 😊☺ Respect +++++

[@ritendraprasad810]

Sir really the explaination is too good got no words to express ur explaination

[@neshatalam4414]

thanks alot sir i never expect that i could understand but only ur explanation got stood ||world best ever sir||

[@roshnipandey7630]

Very nice explanation sir 👌👌 Thank u so much sir you are great .👌👌

[@yuddhveermahindrakar6864]

धन्यवाद सर शंकूछेदाचे वक्रपृष्ठळ व घनफळ या सूत्रांची माहिती ,छान स्पष्टीकरण दिलात

[@aviralverma1045]

And really you have solved me problem which was relies on frustum of cone I am very thankful to you from the core of my heart ❤️

[@AdiTripathiJi]

Sir in order to find radius of sphere, i will treat cone as triangle and sphere are as circle and will apply formula Area of triangle / semi perimeter of triangle = radius Area of triangle =(1/2) r × H Perimeter 2(r+l) Semi perimeter = r+l Radius of sphere =r×h/2(r+l)

[@aayushraikhere6434]

How

[@AdiTripathiJi]

@@aayushraikhere6434 don't think a lot brother.. I am 21 yr old not 10th class student.. I was revising it for competitive exams

[@ritendraprasad810]

Woooww sir!!!!! So good explaination thank for ur help.......

[@samsanjay658]

👍🏻Thanks 💐 👍🏻 sir👍🏻

[@nitugupta5664]

Sir you are the best teacher

[@celebrityworldstatus5614]

Sir you explanation is quite good . Thankyou 🙏

[@devilsgaming2552]

Explained very well, Thank you very much sir

[@KrishPatel-ic6of]

No word are there for your explanation Hats off

[@Kavitasingh-nd7np]

Really a Brilliant teacher never seen in you tube

[@t.s.amarnath2570]

Good sir, thanks for your brief explanation,🙂

[@digiclass7293]

He just like my maths class teacher he is also perfect

[@lakshyaachoudhary7485]

Wonderful explanation I must say

[@iramjahan9357]

U r really good teacher.

[@bajigarbeat2267]

I have no words. Amazing😊😊😊

[@diya_gupta]

Sir you teach amazing! Please tell the answer of the question Radius of sphere = hr / (r + (r²+h²)^½) Sir please tell if answer is correct

[@vikkivolgs31]

Nice explanation sir thank u

[@NitinSharma-kx7sg]

Good teaching sir :) I think Vidya Guru Sonia ma'am Videos are also good for current affairs. I got so many same questions in SBI PO exam.

[@joyjeetdas6435]

Nice one , really helpful ❤🔥❤🔥❤

[@yuvsuri7106]

sir you are the best I like your teaching instead of my school teacher

[@mangansanaloushambam6419]

Thank you so much sir. It is very helpful

[@espakmustafijurislam6503]

Kya samjhaye ho sir...🤩🤩🤩🤩

[@lordparameshwara3349]

TQ sir u r video helped me a lot

[@vasudevaraobandari3286]

Thank you sir for this nice explanation.

[@xyz3991]

AWSM SIR. 😍😍

[@lostgalaxy9084]

R=h×1/3

[@drakshabatool3767]

Thank you....sir you are good teachee😄😄😄😘😘😘

[@rbclasses]

For CBSE Class 10 Maths 5 Latest Sample Papers: www.vidyakul.com/teacher/r-b-gautam If you have any query call at : R B Classes 9058347366

[@adityaraj880]

I am Wordless. I have no words to say.🙏🙏

[@suraj_ag]

Thanks a lot sir try to keep capital L and small l a little different :) love the way that you are so calm

[@abhishekshankhdhar9837]

thank you sir ji 👍👍👍

[@nitendrasingh4013]

What will be the radius of circle

[@artlover4703]

Excellent 👌👌👌👌

[@factx00754]

Sir answer h/2 hai kya? h height of frustum

[@aviralverma1045]

Sir at first we have to find out two triangle and then make them similar after it we have to apply ratio of similarity and then radius of the sphere is comes out to be equal to the radius of the cone

[@thinkingmasterankit1135]

Superb expalanation sir wah....

[@meetanjalipradhan5095]

Nice explanation 👌👌👌

[@adityadadhich1910]

R=rh/l+r property of area of triangle(perimeter of triangle mulitly inner radius /2

[@devanshsingh3274]

Ans. Radio of the largest ball inscribe in cone H/2 where H refers to height of the frustum of that cone

[@sajimanuel3568]

Radius of the largest sphere is 1/3rd of the height of the cone.

[@prakulchauhan2924]

why invent frustum formula while we use for finding suface area of remaing part like area = suface area of bigger cone - surface area of smaller cone

[@vipeshgaurav9719]

Sir optional aata hai kya board exam me ?????? Sir please reply

[@rbclasses]

Yes

[@rbclasses]

For CBSE Class 10 Maths 5 Latest Sample Papers: www.vidyakul.com/teacher/r-b-gautam If you have any query call at : R B Classes 9058347366

[@MAFMXD]

Yes Some important...

[@worldcuplive8885]

Rarely

[@ritikrathi3005]

Yes

[@rajeshkumawat7578]

You're teaching is really nice 😊

[@meetanjalipradhan5095]

Love u sir from odisha 😍😍😍

[@utkarshsinghyadav4915]

Thank you sir. Aaj board exam hai maths Ka. Sir Aapka bahut aabhaari Hun Mai ab Dhanyawad.

[@shiningaura5111]

Let X be the radius of sphere then X = R(H-R)/H where R and H are radius and height of cone.

[@rajendrakushwaha2698]

Sir aapke ke batane se mujhase volume of frustum ka formula samajhh me a gaya

[@aahilkumarr3070]

Sir a cubical wooden box of internal dimensions 1m*1m*1m is made of 5 cm thick wood. The wood costs rs18600 percubic centimeter. If the box is open at top. Find the cost of wood required for making the boxx. Sir plzzz solve this question i am tottaly confused in this question.

[@EDUCATIONISMUST]

Frustom ka height ,,sphere ka diameter ka kaam kregaa,,aur diameter ka half krke radius nikaaal skte hai sphere ka,,simple

[@siddhi4831]

I don't think so because yahan frustum ka baat nhi cone ka baat ho rha hai and cone ka complete height thodi na aa rha hai jo half krke nikalenge

[@malarvizhi306]

Thank you sir 😃😃😃😃😃😃😃😃😃😃😃😃

[@AdityaSingh-lh3nz]

Sir derivation of csa or TSA cone Ka puchta hai kya exam mai

[@nikhilbaranwal1130]

Sir, Radius of largest sphere that can be fit in cone of radius 'r' , height 'h' and slant height 'l' can be found by given formula R = r(l-r) ÷ h

[@justmemyselfandI...]

How?

[@hetalsoni1416]

Sir, the height of frustum will become It's diameter and it's half means height of frustum by 2 will become it's radius.Am I right?

[@reanimatedohm]

No u r not right becoz har bar jruri nhi ha ki frustum ko half hi cut kre agr half se thoda jada ya km cut kr diya jaye tb formula hi kam aata hai ye shi hai. Isliye chijo ko dhyan se smjha kro apne mn me jo aaye usi ko shi man ke mt rkh liya kro

[@ajayverma2650]

h/2 will be the radius of this circle . is this correct sir?

[@poonamdas4265]

Sir r1/2 ??

[@mallicksfacts.3093]

a cone of radius 6cm and height 8cm is completely filled with water. a cone of maximum radius is inserted in the cone. tell how much fraction of water will flow out after inserting the cone.

[@alpanapal1619]

Sir thank you for this explanation

[@BKYADAV-zm7yv]

r1*r1=h*x se x=r1*r1/h, so radius will be R= h+(r1*r1/h) so now we can find everything of sphere sir Am i right sir plz reply

[@abhikumarking9673]

So nice explanation sir

[@raviroy5186]

Sir e-book kaha milege aapki.

[@mitalipandey5460]

Great sir ☺☺

[@AshokKumar-cu7fk]

what is the derivation for value of 'L'?

[@anitakathuria9496]

the best👌🏻

[@TheMentor_1-k5m]

Thank you very much sir.

[@rajeshgahlyan6210]

Thanks sir for this helpful video

[@razzmotivation2071]

Nice explanation sir

[@AgentGaming_005]

thanks sir from 10th class

[@anaya2351]

Awakesome ..!🙏🙏

[@anshumansrivastava6084]

spellings !!! XD

[@worldgaming6205]

SIR MAY YOU LIVE LONG LIFE.####

[@mjjakhar1700]

Thanks a lot sirrr🤍🤍

[@krishmehta8519]

How to do the radius of the sphere.????

[@ShreeStudy]

Greating Sir

[@truestatusjain]

Radius of sphere is h by 2

[@dhruvagrawal3515]

WE CAN FIND THE RADIUS OF SPHERE VIA SIMILARITY OF TRIANGLES AND PROPERTIES OF CIRCLE BUT FIRST CONVERT IT INTO A 2D FIGURE

[@vidyav7388]

Sir are you from JNV

[@hemantghaywat4586]

The radius of the sphere will be h÷2

[@aryangupta79]

Sahi ho yaar

[@shalinipandey8467]

Aap kitna aram se padha rahe h hum to 1.5 x ke speed me dekh rahe h

[@DevRaj-ww3kr]

What is ans of given question

[@sapnasoni8703]

Thank u so much sir🥰🥰

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Sir please cbse sample paper krao

[@jdproduction262]

Thanks a lot very useful