Answer:

1.The key difference between platforms and most traditional business models is that platforms are multisided. By definition, they cater to multiple user groups. Platforms create value by bringing these people and businesses together and enabling them to exchange value. … Traditional service businesses are very similar. Social media reaches a maximum audience, while traditional media’s audience is generally more targeted. Social media is versatile (you can make changes once published), whereas traditional media, once published, is set in stone. … Social media is a two-way conversation, and traditional is one-way.

2.In Euclidean geometry, two objects are similar if they have the same shape, or one has the same shape as the mirror image of the other. More precisely, one can be obtained from the other by uniformly scaling, possibly with additional translation, rotation and reflection.