40. Dual of Planar Graph

[@ARWORLD-xw8ph]

thanks ..mam...for your contribution......you are a best teacher

[@bismalmajeed2167]

excellent mam..

[@shaniabalkhi8065]

clear explanation.

[@krishatalsania6593]

Why we are not connecting p3 with p5 and p4 with p5?

[@owl166]

P3 and P5 doesn't have a common edge they share common vertex. THATS WHY....

[@soumadip_banerjee]

nice explanation mam!

[@the_good_bad_actors]

really good explanation mam.

[@rupamghosh8471]

P4 TO P6 OUT OF THE SELF IOOP P5 WHY NOT CONNECT?

[@knowmore5899]

Thnku

[@g10_de_coder]

P2 and p6 must join by two edges that you didn't do that. According to rule no. 2. Bcoz there are two common edge between them

[@jatindradhar8503]

P2 and P6 are already joined by two lines see carefully!

[@akshayrajn1271]

why there must be 2 edges from p2 to p6

[@adarsh221294]

Its actually Geometric Dual Graph, please be clear about the basics first

[@disciplinenepal5081]

good mem hindime bolo u are indian jaise lagti h

[@EarthlyGeek]

Mam,why didn't you connect P3 and P5 ?

[@ShivRaj00009]

It is bcz to connect p3 to p5 we need to go through 3 edges

[@antarbasu5342]

You did nothing with the second rule. This explanation is wrong.

[@rishikeshjha1357]

why didn't she join p4 & p5

[@antarbasu5342]

Because there is two edges between p4 and p5. We can join when there is only one common edge.

[@chandranath4142]

Why p4 and p5 not connected?

[@ankitanand3497]

Because there is more than 2 region viz. F4, F6 and then F5. You can't go directly from F4 to F5 by not intervening F3 or F6.

[@swathigowda8722]

Why p4 and p5 not connected?

[@ShivRaj00009]

Bcz to connect p4 and p5 there are 2 edges to passed or a line which connects p4 and p5 will intersect two lines.