Speaker: Welcome everyone; today I am going to show you just a few logic problems. So you can again test your friends, impress girls or just get an extra point out of your math teacher.
The first one, it's a -- just connect each column with it's matching pair using lines, and it don't have to be straight, imagine this is an above view of a room, and these are five columns, and these green, the two greens one are touching the wall, and this black one, and the blue one are also touching the walls.
So you can get a line passing behind. So you just got to mention a -- which the pair -- blue with blue, black with black, and green with green. So stop the tape, you want to try yourself or you would just want to see the answer?
Well, I will do it for you. It's real easy, you get the black one, let's start with the blue one. The blue one with the blue one in a straight line. The green one, next to black one, it's much easier. Then black goes with black, and some of you might have guessed, green goes with green. If you are doing it on blackboard or something and then you don't get caught, you just can number them, like one-one, two-two and three-three or whatever.
Okay, next it says, cross on nine points which is four straight lines. So now most people will try to do something like this, and then this, and this, and they will stuck, they will stay there for like hours trying it. So it's real easy actually, just got to think outside the box, literally. You just do a straight line up to here, then draw another straight line.
So this is one, two, three and finally four, and you got all nine points covered just with four lines and finally, this is the most tricky one. You got to divide this area here, imagine that this is like perfectly square parenthesis. What this square is exactly is it must be same as this one, and this one.
So same with this, and this, and this. You got to divide any two parts in three and four, and this one in seven parts. So, first one it's real easy, just got to draw like that, this next part, it's even easier, I am just going to do like this, and these are technically perfect squares, and final -- this one is really tricky, most people will get stuck on this one. They will try to cross it like that and then like that, but that's not the same size of triangles.
So what you got to do actually is like this, draw a straight line over here, come back here, draw here, and here, and here, and there you go. You got these area here, which is exactly the same as this area here, and this area, and this area. I hope you can see well, and finally, most people will think this one, trying to think of really complicated areas, but it's real simple. I am just going to divide it into seven straight lines and you get seven parts out of this square.
So you just get up, draw the first in seven parts, you want to make into even, and that's about it. I hope you enjoyed and check the other videos too.
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