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oh look it's my cousin foul cousin foul what can I do for you hey sad whatsapp oh well not much I'm just sitting here thinking about what video I should do next well then maybe you can help me I'm starting a shape collection okay so so how do you need help but look at these shapes over here I have no way to classify them okay well um there's a bunch of ways that you could classify them the first way you could you could think about how many sides each of these shapes have so that's one way to think about it how many sides they have how did I figure that out okay well let's let's look at each of these and think about how many sides they have so this first shape right over here this is one side we see this kind of straight right over here it's it's the it's the straight line between these two corners so that's one side two sides three sides and four sides so this shape right over here is four sides okay I think I get it what about this state right over here okay well let's see this one well same idea this one also looks like it has one two three and four four sides what if I decide okay well this one actually this is interesting this one actually has no corners and it has no sides there's no there's no straight edges over here this thing is all curved so since it has no corners it also has no size or at least the way that I'm thinking about it so I would say that this one over here has zero sides zeros zero let me write that a little bit neater for you okay yeah I like to write it things really neat okay zero sides and it has zero corners actually let me write them for all of them this one has four sides and we could also count the corners we have one that's where the two sides meet one two three four corners four corners this shape over here it also has four sides we already counted that it has one two three four corners so four sides and four corners actually describes of these shapes this one has zero sides and zero corners what about the green one okay well let's see one side two sides three sides and four sides and it also has one two three four corners so this is also four sides and four corners is also true of that one there the ball-shaped has four sides of four corners no no not at all I mean well you know this one right over here at zero sides in zero corners and actually this this last shape right over here doesn't seem to have four sides or four corners if we count them we have one side two sides and three sides so this one has three sides and if we count the corners we have one corner two corners and three and three corners oh thanks a bunch of cousin Sal but but one I always get confused whether you're my cousin or my my uncle but I'll call you cousins out but but what I read in a shape magazine that there's other ways that I can classify I can classify based on whether the sides have the same size so which of these have all the sides are the same size okay well calm down let's let's look at this so if you look at this one it has four sides but we see that this side right over here this green side is clearly shorter than this purple side so all the four sides here are not the same length but if we look at this shape right over here this side at least looks like the same length as this side and that looks like the same length as this side and that looks like the same length as that side so it looks over here like all four sides are the same length and that's also true for this shape this side looks the same length as that side looks the same length as that side looks the same length as that side it's also true for this three-sided shape this side looks the same length as that side the same length is that one oh thank you so much cousins out I'm ready to go classify my shape collection this is awesome oh I'm glad that I could I could help