Squares

Square

He was a pal of my cousin Gussie, who was in with a lot of people down Washington

And we knew that it involved this square.

Draws rectangles and squares

Flatland is populated by geometric shapes, ranging from isosceles trianges to equilateral triangles to squares, pentagons, hexagons, all the way up to circles.

Square Dithering

SquareDithering

Square color

Draws rectangles and squares with rounded corners

We know all the sides are equal.

Start with one square and draw another next to it that is the same height.

A square is one type of rectangle, and a rectangle is one type of parallelogram.

Wilson, mopping his forehead I have a small pawnbroker's business at Coburg

Now, let's make it a little bit more interesting.

Five squares, subtract four squares equals one square, one twentieth.

Now, perhaps you can see why these are called hypercubes. This is a cube.

Shabaqua Corne

Completed Squares

NoSquareDithering

No, we used that.

Just to make things clear, some rhombuses are squares, but not all of them, because you could have a rhombus like this, that comes in where the angles aren't 90 .

This side right here.

Then we know that the height right here is 8 meters.

So you make a 3 by 3 square, and here's a 4 by 4 and then 7 and then 11...

Here's one way to draw a really perfect spiral

Extend the whole line segment by an inch, and we get a 2D square.

This is going to be (a) as well.

Area is kind of a measure of how much space does this thing take up in two dimensions?

So this one right over here has the same area, different perimeter. Same area as the original, as the original yellow rectangle, different area.

Cut a square in halves.

The number of squares the area is wide

Now what about area of a square?

Oh well, might as well try to do the spiral from here.

It means we're going to add that square to that square to that square

If this is 2, then this is going to be 2. So you just multiply 2 times 2.

Well, a square is just a special case where the length and the width are the same.

The number of squares the area is high

37.

In this diagram, there are 20 small squares in each rectangle.

Another way to say it is that this larger square I guess that's the square that they're talking about.

A square has four sides.

We're on problem 31.

Let me just draw it.

Problem 50 What is the measure of an exterior angle of a regular hexagon?