yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Partitioning rectangles


2m read
·Nov 10, 2024

So, I have a rectangle drawn right over here, and my goal is to split this rectangle up into smaller equal squares. The way that I'm going to do that is by first dividing this rectangle into two rows—two equal rows—and then I'm going to divide this rectangle into five equal columns.

Now, I know some of you are saying, "What is a row and what is a column?" So, a row—at least, my brain thinks about it as a part of the rectangle that is going from left to right. One way to think about it is, if I had a bunch of, let's say, these are apples here, and if I wanted to think about dividing these apples into rows, I would say that this is the first row, this is the second row, and that this is the third row.

If I were to think in terms of columns, I tend to think of columns as going up and down. So, the columns—in this case—this would be one column, this would be another column, this would be a third column, and this would be a fourth column.

Now that we understand what rows and columns are, let's first think about—maybe pause this video and think about—how would you divide this rectangle into two rows? Well, the way that I would tackle it is I would draw a line that goes from left to right, and there you have it! I now have the rectangle split into one row and now a second row.

Now, pause the video and you could draw this if you have a pencil and paper with you, or you could just think about what I should do. How would I now divide this rectangle into five columns? Well, what I could do is make a bunch of lines that go from top to bottom. So that's one column there, this is a second column, this is a third column, this is a fourth column, and a fifth column.

So there you have it! I have two rows—one row, two rows—and I have five columns—one, two, three, four, five. Now, what's interesting is when I split the rectangle in this way into two rows and five columns, how many equal-sized squares did I create? Well, I've created one, two, three, four, five, six, seven, eight, nine, ten equal squares.

And that makes sense because each row has five. I have one, two, three, four, five; one, two, three, four, five—and five plus five is equal to ten. Another way to think about it is each column has two: one, two; one, two; one, two; one, two; one, two—and two plus two is four, plus two is six, plus two is eight, plus two is ten.

So that's what splitting the rectangle into two rows and five columns gets me: it splits it into ten sections.

More Articles

View All
Jamie Dimon's Brutally Honest Thoughts on the US Economy.
You are more pessimistic about a soft landing. Do you still think that the truth is the truth is the truth, and the truth today is pretty ugly? That there, as many of you may already know, is Jamie Dimon. He is the CEO of America’s largest bank, JP Morgan…
How I started my business. 📈
How did you end up in London and why London? I read originally you’re from New York. Yeah, I am from New York. I left the business for a while. I was in private equity, working with guys doing some corporate takeovers. And then I decided to get back into…
Multiplicity of zeros of polynomials | Polynomial graphs | Algebra 2 | Khan Academy
So what we have here are two different polynomials, p1 and p2, and they have been expressed in factored form. You can also see their graphs. This is the graph of y is equal to p1 of x in blue, and the graph of y is equal to p2 of x in white. What we’re g…
Where Do Great Startup Ideas Come From? – Dalton Caldwell and Michael Seibel
In all three of these cases, these folks had the problem they had experience with, and in hindsight, there was an obvious opportunity to make something 10x better. But most people thought they were idiots, and that’s probably the overarching theme. They h…
Safari Live - Day 376 | National Geographic
[Music] This program features live coverage of an African safari and may include animal kills and carcasses. Viewer discretion is advised. Good afternoon everyone! Well, no better way to start an afternoon game Drive than with the little prince, who’s po…
Vatican City Explained
Vatican City: capitol of the Catholic Church, home to the pope, owner of impressive collections of art and history all contained within the borders of the world’s smallest country: conveniently circumnavigateable on foot in only 40 minutes. Just how did t…