Curved Surface Area of Cone || for Class 9 in Hindi

[@rachitsingh9990]

This video is awesome, superb and very knowledgeable for ""MATHS LOVERS"".

[@shivanshgupta1874]

Sir ap bahut mast vedio banatai ho or samajha tai ho plz iski or vedio banado l request sir plz ...... Plz sir e.g cubiod , 'cube , cylinder, total surface area a cylinder etc plz sir .....

[@BabitaKumari-ui7ez]

At 5:43 R and l toh same h butt wo appas m cancel out kyun nhi hua?

[@Relates_to_ur_life]

@@BabitaKumari-ui7ez r cone ke base circle ka radius h aur l sector ke circle ka radius..dono alg h alg circle ke radius hai

[@Relates_to_ur_life]

Cube, cuboid, cylinder..ye to esy h. i)ᴄᴜʙᴇ..square se bnta h, cube me 6faces hote h yani 6sqrs 1sqr ka area agr a² to 6faces ka 6a².. => TSA=6a² Same, LSA=4a²..bcs 4faces hogye Yani 4sqrs ii)ᴄᴜʙᴏɪᴅ.. Ye 6rectangles se bnta h.. Top & bottom dono same dimensions ke h l & b.. To area(top & bottom)=lb+lb=2lb Ab 4walls.. To ek side ke opp walls ka hoga bh+bh=2bh And othr side ke opp walls ka lh+lh=2lh.. So, tsa=2(lb+bh+hl) iii)ᴄyʟɪɴᴅᴇʀ.. Ye circle se bnta h.. Circle ke upr circle rkh ke jse sikke ke upr sikka.. CSA=2πrh.. 1circle ka crcmfrnc=2πr..ab yhi circumfrnc pure h height tk ja rha h, that's y..2πr×h=2πrh Baki total ke liye top & base ke circles ke area ko add kr do.. To TSA=2πrh+2πr²

[@masterblaster3653]

Cuboid cube are so easy you can derive it yourself Cylinder is also kinda ez

[@mohdparvaizbhatjnvbudgam633]

@@BabitaKumari-ui7ez R is the radius of Sector (when it forms radius of circle in the base of cone) . And L is the radius of circle. L and R are not same

[@krishnachaudhary410]

Better than Best ☺️🔥👍👍

[@nehashah9946]

It's superb....this type of education is required in our schools....perfect

[@salimjaved1890]

Being a teacher, I felt the video was super. This will definitely help my students. Thanks.

[@veenanaithani8322]

Wow,very nice sir🙏🙏 bilkul sahi , formula to nikalna batana hi chahiye ,sab direct formula rata rahe hai ,aap perfect teacher hai 👌👌👌👌👌

[@rishiparmar111]

♥️♥️♥️ amazing pls 🙏 make formulas for frustum of a cone

[@surekhaalone3510]

Knowledge aisa do ki log comment krne pr majbur ho jaye......ye mera first comment h youtube pr ..bcoz of ur best explaination..aj tk maine kbhi bhi kisi bhi channel pr comment nh kiya h ...ur best mentor in the world...keep it up sir and thank uhh so much for ur guidence

[@TopTeamDiet]

C.S.A of cone =Area of sector 1/2 ×l×r ( when arc length is given). Where l is length of arc and r is radius of circle. So given l= 2.pi.r And , radius of circle ( r) = l C.S.A OF CONE = AREA OF SECTOR = 1/2×l×r = 1/2×2.pi.r × l = pi.r.l ans.😊😊

[@adr420]

Thank you very much sir .... I was struggling for that ....

[@sakethrebel8182]

Excellent teaching. Very conceptual and lucid.. majaa aagaya sir ji !!❤❤

[@anjusureka9874]

Thank you sir very much 🙏 U explained every step clearly and in detail

[@thimmasamudramsivasaisreer9623]

Wonderful explanation sir never heard such a clear explanation from anyone.Thanks alot guruji ❤️❤️

[@ramkiramki8453]

Brilliant sir explanation 👏

[@onpathak]

Very nice explanation. Great job. 👌👌

[@sanjayjaiswal1289]

Great practical guide

[@MAHATHACLASSES]

Bahut badhiya

[@sukoon2336]

Tysm..i ws literally confused in this topic..u made it very clear..thanks once again

[@BabitaKumari-ui7ez]

At 5:43 R and l toh same h butt wo appas m cancel out kyun nhi hua?

[@scrltmcw963]

@@BabitaKumari-ui7ez R aur L different hai. R cone ke base ka radius hai aur l cone ka slant height hai. Btw wo same hote to bhi cancel nahi hote r² ya phir l² hota

[@Jaqen_Hghar]

Thanks a lot, this is the easiest solution to this problem.

[@manjunagwanshi5465]

Good morning sir. Very nice video. I got it. Thank you sir. 🙏🙏🙏🙏.

[@RavindraKhalkar-ti2px]

Very useful and best explanation !

[@surendrakumar2610]

Beautifully explained.

[@AyanBhowmik012]

Excellent and very useful video, Sir. Thanks a lot again sir for teaching us Mathematics with your best teaching skills are care. A lot of respect and love to you, Sir ❤️❤️ Take care of your health 🙏🙏☺️☺️ Sir, please upload this videos on your 'Edunext maths 9' Channel.

[@BabitaKumari-ui7ez]

At 5:43 R and l toh same h butt wo appas m cancel out kyun nhi hua?

[@AyanBhowmik012]

@@BabitaKumari-ui7ez 'r' and 'l' are not same. 'r' is the radius of the Base of the Cone and 'l' is the slant height of the Cone. Therefore l² = r² + h²

[@patakotisrinivas1918]

Excellent sir..so lucid,so lucid...thanks a lot...

[@swastikadas431]

Thank you sir, for your good demonstration

[@prabirbhowmick8788]

What s clear cut explanation. At the age of 56, enjoyed...now time for cylinder...

[@lokendrabhatt5580]

Great teacher ❤🎉

[@anjuyeswanth]

Very well explained... Thankyou so much sir...

[@gosula.amaralingeswararao8698]

Sir ur explanation is good

[@kanishkabora2213]

Thanks a lot sir i understand the concept very clearly 😃😇

[@abhiff6046]

Perfect explanation sir super super super 👏❤️❤️❤️❤️😁

[@angstromscience9123]

Adbhut❤️

[@manojsinghjalal565]

aap jaisa teacher maine kahi nahi dekha

[@b.o.t.2060]

Helped a lot... Loved it...

[@Ashishyadav-pt4xf]

AWESOME !!! you have explained in a very simple way thank you

[@X220Shahidrathod]

People before calculas 🥸

[@nershmondal8117]

Nice explanation 😊

[@priyanshithoughts7818]

Very well made!!

[@ramupattu9444]

I do not know Hindi. But I clear understand this video. Because diagram great hlepful .

[@hyhardys]

Sir I am big fan

[@DhaneshwarSahu-wq2fg]

Very beautiful ❤

[@princebarnwal8594]

CSA of cone =Area of sector = 1/2 length of arc× radius = 1\2×2πr ×l = πrl

[@lovelypandey59]

Helpful☺️

[@riteshshukla8153]

Nice

[@lokendrabhatt5580]

this video is outstanding.

[@Gogo-p1h]

Amazing video 😌

[@sciencegk5505]

You are great teacher.

[@edupoint.secondary]

Thank you very much for your huge support. 🙏🙏🙏

[@BabitaKumari-ui7ez]

At 5:43 R and l toh same h butt wo appas m cancel out kyun nhi hua?

[@tushargupta4793]

Thanks sir ,🙏👍👍🌸🌺🌹☘️

[@Vicky047]

AWESOME...

[@shashibhushanpracticeofexa9610]

Wao! Mind blowing

[@youtubeeducationbot3725]

Amezing 👍

[@AnilKumar-vf7tp]

Very well explained But area of Sector (1/2 l. r) bhi hota hai us se or easy ho jaiga

[@prashant24]

Legendary 🔥

[@ashutoshtiwari2064]

Teachers school me ratuu Vidya hi dette hai kitni Sharma ki batt hai excellent work

[@RituShortsIndia]

Very good explanation 🙂

[@EduTalkSC]

awesome way to represent........May I know which software you use to represent these lessons ?

[@Ranvir1001]

Power point

[@mihirsheth9918]

Great video 👌🏻

[@gautamyadavmaths]

ɢᴏʀɢᴇᴏᴜs ᴍᴇʀᴇ ʙᴀᴅᴇ ʙʜᴀɪ...👌🏻👌🏻👌🏻✍🏻

[@Carlos-qz7ul]

Beautiful demonstration, detailed and progressive. Thanks! 👌

[@josefvijay6837]

Supper sir ur explanation

[@allo101]

Thank you sir please make this type of video

[@oozwalmahali2142]

sir please make a video on why the cone have 1 by 3 in its volume formula

[@Ajay.Tiwari]

Best educator

[@RajahmedInamdar-uu9ze]

tq sir simple nice explntn

[@foziasabir325]

appreciate you from Pakistan

[@निःShabd]

Sir similarly sphere ka volume & surface are bhi explain krein pls..

[@vishnugalav9285]

Good morning sir🙂🙂🙂🙂🙂

[@sumankumaryadav1534]

Superb Sir

[@stj1203]

Very wonderful explanation

[@progaming4563ak]

❤👍 nice

[@Cartoon_babu786]

Sir why do we need to take PI in circle case.

[@riteshyadav5735]

Good morning sir please shoot video on quadrilateral chapter

[@nxvagamer7726]

the explanation couldn't have better..... thank you so much..

[@nxvagamer7726]

been*

[@masterblaster3653]

@@nxvagamer7726 edit option exists

[@gaxegaming5193]

Bhut op💥

[@coloursnglitters]

Thanks a million 🤍

[@serenakhanra4327]

Great 👌

[@bikramkumar7575]

You deserve millions 😘😘

[@Razina-w9l]

Thank you sir.

[@SSB_TATS]

Thnk u sir🙏

[@ashutoshtiwari2064]

Hi jaise baccho ka sahara ho bhagwan aapko sadaiv khush rakhe

[@sunya6865]

Nice!! 👍

[@technoduniya9863]

thank you sir

[@NitishKumar-nt2im]

Thank you so much sir

[@santoshkanekar7801]

Amazing..❤️

[@AbdulMannan-yq6jm]

Super explanation

[@ankitpratap5335]

Mahan karya kr rhe hain aap

[@t.r.g-ravigaming9937]

Sir please make video on mathematics for CBSE🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@itssunaina5643]

Wow ♥️♥️♥️

[@RahulJain-xg4jx]

Berry nice editing

[@Watchmore12_45]

I have a question that why did we multiply the area of circle with how many times this cirlcle is this sector?

[@masterblaster3653]

What if the angle is given to us then we can use the angle to know how many times of this circle is this sector right?

[@t.r.g-ravigaming9937]

Thanks for making video on science

[@edupoint.secondary]

Almost every topic is vailable.

[@dolatram1236]

Wonderful!

[@Venu-tp9hd]

super teacher

[@nagarajubeedilagampa]

for your explaination . take a bow

[@nguamolyt327]

What a proof sirji

[@drivingmaster5809]

Very helpfull video

[@abhishekkumarsingh4892]

Mtlb kya padhate ho sir hm kya bole kuchh samjh me nii aaraha aapke bare me jitani tarif ki jae utana km hai sir utana kam respect from ❤️ sir 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻aaaap jio aajaaro saal sir wah maja aaagaya padh ke sir 🙏🏻🙏🏿🙏🏿

[@edupoint.secondary]

🙏🙏🙏🙏 Aapke dua o ke kiye ajashra dhanyavaad.

[@SAFuad-fz5tz]

Unbelievable!

[@kingxlitegamer.2607]

thank you so much Sir 😊. my most confusing chapter.. sir please sir sare formulas ka postmartem kar dijiye 🙏🏻

[@BabitaKumari-ui7ez]

At 5:43 R and l toh same h butt wo appas m cancel out kyun nhi hua?

[@badmosbangalipp]

1:03