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This lessons explains the concepts of geometry with different examples

## Vineet Loomba is teaching live on Unacademy Plus

Vineet Loomba
IITian | No. 1 Educator in IIT-JEE (Maths) | 4 Million Minutes Watch Time | 8+ Years Experience | Youtube: Maths Wallah | vineetloomba.com

U
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awesome course sir thanks a lot
Thanks sir for making such nice videos.
In the case of n points on a circle to form a straight line and triangle, here we've multiplied 1. But in the case of 5 collinear points, we've added 1. Why sir? not getting it.
thanks sir 🙏
Hello Sir, First of all a big thanks for your good work. Hopefully you will keep on rocking like this always. here coming to my query. in example with 10 points on plane and 5 in colinear. suppose a b c d and e are colinear points in same sequence. here from my point of view I agree that whatever lines we will form it will be on 'ae'. but still ab, ac, ad, bc, ....... they are also straight lines. don't we consider them? thanks for your reply in advance. hope to see your inputs Regards Sandeep
sir in slide 4 , the 5 points which are collinear can contribute as a side of a trianfgle and thus can make 5 diff triangles with those 5 diff non collinear points and therefore the no. of triangles formed should be 5*5c3 na? help me with this sir.
1. PERMUTATIONS AND COMBINATIONS JEE MAIN AND ADVANCED (IIT-JEE) IIT-JEE MATHS MADE EASY PREPARED BY: ER. VINEET LOOMBA IITiAN | IIT-JEE MENTOR FoR SURE SHoT SUcCESS IN JEE MAIN AND ADVANCED (IIT-JEE)

2. 100% SUCCESS IN JEE MAIN AND ADVANCED (IIT-JEE) ABOUT ME B.Tech. From IIT Roorkee IIT-JEE Mentor Since 2010. Doubts/Feedback in Comment Section * Comment other topics you want to revise. Follow me @ https://unacademy.com/user/vineetloomba to get updates. Share among your peers as SHARING is CARING !!

3. 100% SUCCESS IN JEE MAIN AND ADVANCED (IIT-JEE) There are 'n' points on a circle. Joining these points (a) How many straight lines can be formed (b) how many triangles can be formed eomet Sol 2. b) cx 3 MATHEMATICS FOR IIT-JEE ER. VINEET LOOMBA (IIT RooRKEE)

4. 100% SUCCESS IN JEE MAIN AND ADVANCED (IIT-JEE) re are 10 points in a plane out of which 5 are collinear (a) How many triangles can be formed (b) How many different straight lines can be formed lo 5 3 3 5 MATHEMATICS FOR IIT-JEE ER. VINEET LOOMBA (IIT RooRKEE)

5. 100% SUCCESS IN JEE MAIN AND ADVANCED (IIT-JEE) Find the number of diagonals of a n-sided polygon MATHEMATICS FOR IIT-JEE ER. VINEET LOOMBA (IIT RooRKEE)

6. 100% SUCCESS IN JEE MAIN AND ADVANCED (IIT-JEE) There are 20 persons in a hall. How many different handshakes are possible 20 20X919o 2. 2 MATHEMATICS FOR IIT-JEE ER. VINEET LOOMBA (IIT RooRKEE)

7. 100% SUCCESS IN JEE MAIN AND ADVANCED (IIT-JEE) There are 20 persons in a hall and each gives a greeting card to another. How many exchanges are possible. 2.0 MATHEMATICS FOR IIT-JEE ER. VINEET LOOMBA (IIT RooRKEE)

8. REVISION COURSE FOR JEE MAIN AND ADVANCED (IIT-IEE ABOUT ME B.Tech. From IIT Roorkee IIT-JEE Mentor Since 2010. Doubts/Feedback in Comment Section * Comment other topics you want to revise. Follow me @ https://unacademy.com/user/vineetloomba to get updates. Share among your peers as SHARING is CARING !!