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

Exploring scale copies


2m read
·Nov 11, 2024

We are told drag the sliders, and then they say which slider creates a scale copy of the shape, or which slider creates scale copies of the shape. So, let's just see, explore this a little bit.

Okay, that's pretty neat! These sliders seem to change the shape in some way and in different ways. So, shape B right over here, it starts off, it looks like the width is a little bit bigger than the height. I'm just trying to eyeball it; we don't know the exact numbers.

In order to create a scaled copy, you'd want to scale the width, you'd want to scale this bottom side and the top side and all of the sides. You would want to scale by the same factor. But as we move this slider, it seems like it's only scaling the width; it's not scaling the height.

So, this slider, shape B right over here, the slider for shape B is not creating scale copies of itself. It's only increasing the width, not the height. While shape A, it looks like it is increasing both the width and the height, so that would be a scaled copy.

For example, that looks like a scaled copy of this, which looks like a scaled copy of this, which looks like a scaled copy of that, which was our original shape. That is not a scaled copy of this.

Let's do another example. So, once again, they say drag the sliders, and they say which slider creates a scale copy of the shape.

Alright, let's get shape A. So, this does look like we're scaling down, but we're scaling both the width and the height by the same factor. So, shape, this shape A slider does look like it's creating scale copies of the shape B right over here.

Well, now we're only scaling; it looks like we're only scaling the height, but not the width. So, this is not creating scale copies of our original shape. It's elongating it; it's increasing its height but not the width.

More Articles

View All
Populations, communities, and ecosystems | Middle school biology | Khan Academy
In biology, it’s useful to have some shared language so we can communicate and describe the world around us in ways that we can all understand together. So here, we’re going to talk about populations, communities, and ecosystems, and as we’ll see, these …
Protecting a Flamingo Paradise | Incredible Animal Journeys | National Geographic
When we set out to film this series, we knew that we’d face some challenges along the way, but nothing compares to what the wildlife is up against. Animal journeys formed over thousands of years are in real danger. [Music] Physical barriers, disorientat…
How much does it cost to own a corporate jet?
If you have a small jet, it’s going to cost you about a million bucks a year. If you have a large cabin, it’s going to cost you 2 million bucks a year. And if you have an ultra-long-range airplane, it’s going to cost you 3 million bucks a year. That’s bas…
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…
What to think about when taking over an existing business?
Every now and then, I get a friend or family member saying that they’re interested in buying some type of a business. So, this wouldn’t be about starting a business, but there might be an existing business. Maybe it’s a convenience store, or maybe it’s so…
Applying Einstein velocity addition | Special relativity | Physics | Khan Academy
Now let’s apply the formula we came up in the last video, sometimes known as the Einstein velocity addition formula, and we’ll see that it’s a pretty neat thing. So let’s say, this is once again me floating in space. My frame of reference is just the S f…