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 .....
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
@@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
@@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
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 '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
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 🙏🏻🙏🏿🙏🏿
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 .....
At 5:43
R and l toh same h butt wo appas m cancel out kyun nhi hua?
@@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
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
Cuboid cube are so easy you can derive it yourself
Cylinder is also kinda ez
@@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
Being a teacher, I felt the video was super. This will definitely help my students. Thanks.
This video is awesome, superb and very knowledgeable for ""MATHS LOVERS"".
Bahut badhiya
Better than Best ☺️🔥👍👍
Wow,very nice sir🙏🙏 bilkul sahi , formula to nikalna batana hi chahiye ,sab direct formula rata rahe hai ,aap perfect teacher hai 👌👌👌👌👌
It's superb....this type of education is required in our schools....perfect
Wonderful explanation sir never heard such a clear explanation from anyone.Thanks alot guruji ❤️❤️
Thank you sir very much 🙏 U explained every step clearly and in detail
What s clear cut explanation. At the age of 56, enjoyed...now time for cylinder...
Excellent teaching. Very conceptual and lucid.. majaa aagaya sir ji !!❤❤
Great practical guide
Tysm..i ws literally confused in this topic..u made it very clear..thanks once again
At 5:43
R and l toh same h butt wo appas m cancel out kyun nhi hua?
@@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
Thank you very much sir ....
I was struggling for that ....
Brilliant sir explanation 👏
♥️♥️♥️ amazing pls 🙏 make formulas for frustum of a cone
Thanks a lot, this is the easiest solution to this problem.
aap jaisa teacher maine kahi nahi dekha
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.
At 5:43
R and l toh same h butt wo appas m cancel out kyun nhi hua?
@@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
Thank you sir, for your good demonstration
Beautifully explained.
Adbhut❤️
Excellent sir..so lucid,so lucid...thanks a lot...
Very useful and best explanation !
Very nice explanation. Great job. 👌👌
Helped a lot... Loved it...
You are great teacher.
Thank you very much for your huge support.
🙏🙏🙏
At 5:43
R and l toh same h butt wo appas m cancel out kyun nhi hua?
CSA of cone =Area of sector
= 1/2 length of arc× radius
= 1\2×2πr ×l
= πrl
Very well made!!
Good morning sir.
Very nice video.
I got it.
Thank you sir.
🙏🙏🙏🙏.
Great teacher ❤🎉
Sir ur explanation is good
Very well explained... Thankyou so much sir...
😮
Hi jaise baccho ka sahara ho bhagwan aapko sadaiv khush rakhe
1:03
I do not know Hindi. But I clear understand this video. Because diagram great hlepful .
Helpful☺️
Nice
You deserve millions 😘😘
Wao! Mind blowing
this video is outstanding.
Teachers school me ratuu Vidya hi dette hai kitni Sharma ki batt hai excellent work
Bhut op💥
awesome way to represent........May I know which software you use to represent these lessons ?
Power point
sir please make a video on why the cone have 1 by 3 in its volume formula
Sir I am big fan
People before calculas 🥸
Legendary 🔥
Thanks a lot sir i understand the concept very clearly 😃😇
Perfect explanation sir super super super 👏❤️❤️❤️❤️😁
Very wonderful explanation
AWESOME...
Amezing 👍
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?
Best educator
Very well explained
But area of Sector (1/2 l. r) bhi hota hai us se or easy ho jaiga
Nice explanation 😊
Very beautiful ❤
Mahan karya kr rhe hain aap
AWESOME !!! you have explained in a very simple way thank you
thank you sir
Majja aaa gaya bhai
Amazing..❤️
for your explaination . take a bow
Thank you sir.
Supper sir ur explanation
tq sir simple nice explntn
Superb Sir
Sir similarly sphere ka volume & surface are bhi explain krein pls..
appreciate you from Pakistan
Very good explanation 🙂
Thanks for making video on science
Almost every topic is vailable.
Amazing video 😌
Great video 👌🏻
Thank you sir please make this type of video
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 🙏🏻🙏🏿🙏🏿
🙏🙏🙏🙏
Aapke dua o ke kiye ajashra dhanyavaad.
ɢᴏʀɢᴇᴏᴜs ᴍᴇʀᴇ ʙᴀᴅᴇ ʙʜᴀɪ...👌🏻👌🏻👌🏻✍🏻
Thank you so much sir
Wonderful!
the explanation couldn't have better..... thank you so much..
been*
@@nxvagamer7726 edit option exists
Unbelievable!
Super explanation
Good morning sir🙂🙂🙂🙂🙂
👍👍👍
It is not only for class 9 I have problem in engineering statics I am looking for centre of curve so I need area of cone i need area of 1/4 of cone
Thanks a million 🤍
Sir why do we need to take PI in circle case.
Berry nice editing
Very helpfull video
Sir if, liquid have low density than solids...So why ice floats on water??
I studied this, ice has a cage like structure (because there are gaps in the ice filled with air) and hence it floats on water
Very helpful
Great 👌
Nice explanation
Thnk u sir🙏
Love you sir
❤
Sir pls pie ke bare kuch Bata dijye na MATLAB uska value se related
Nice!! 👍
Thanks sir
Thanks sir ,🙏👍👍🌸🌺🌹☘️