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
Jack Black Meets a Young Climate Activist | Years of Living Dangerously
[Music] I want you to meet my protege, Delaney. Hello Delany! I’ve heard so much about you. Have a seat. Delany Reynolds, 16-year-old budding scientist. Somebody who found out about climate change and sea level rise, and she’s really engaged and she’s …
Jessica Livingston's Advice For Founders
I’m going to switch from talking about my own story to give you my general advice for Founders. This is very sort of quick advice. Um, the most important quality you can have is determination. I’ve seen so many smart and talented Founders fail because the…
Half-life | Physics | Khan Academy
This is a Neanderthal skull. Neanderthals are an extinct species of humans, and we believe they went extinct about 35 to 40,000 years ago. This is Earth, and we believe Earth to be about 4.5 billion years old. But my question was always, how do we know th…
Adding whole numbers by their place values | Math | 4th grade | Khan Academy
What is 19,000 plus 7? To first, let’s think about what are 19,000 and what are 7. Then from there, we can add them. So, 19,000 would quite literally be if we had a thousand 19 times. So, there’s a thousand one time. If we had 1,000 two times, we would h…
Measuring lengths in different units
So I have the same green rectangle up here and down here, and what I want to do is measure its width. But we’re going to measure its width in two different ways. Up here, we’re going to measure its width in terms of how many of these paper clips wide the …
What Happened Before History? Human Origins
The world we live in feels normal, ordinary. It feels like this is just how humans exist and always existed. But, it’s not. Never before have we humans lived in a world as sophisticated and engineered to our needs as today. Giving us the luxury to forget …