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
How to motivate and engage your kids in learning while at home
Hey everyone, welcome to our webinar! My name is Lauren Kwan, and I’m on the Khan Academy team. Today, I am joined by my co-worker, Dan Tu, and our special guest, Connor Corey. Connor is an expert teacher, a parent, and a Khan Academy ambassador, which me…
The Truth Behind Branson and Bezos Going to Space... (Virgin Galactic and Blue Origin Launches)
So, over the past month, billionaires Jeff Bezos and Sir Richard Branson both independently announced that they themselves would be suiting up, hopping in their respective companies’ rockets and launching into space. Jeff Bezos would take to the skies in …
Why the Dinosaurs’ Extinction is an Ongoing Puzzle | Nat Geo Explores
[Music] This happened about 66 million years ago. The impact was as powerful as 10 billion atomic bombs. From the catastrophic global effects on the environment were even deadlier. Seventy-five percent of life on Earth went extinct, including a dominant g…
The World on the Ocean Floor | Sea of Hope: America's Underwater Treasures
[music playing] MAN (OVER RADIO): [inaudible] 200 meters. Pisces V, K OK, do you copy? Roger, hatch is shut, ready to dive, dive, dive, over. MAN (OVER RADIO): Roger, hatch is shut, ready to dive, dive, dive. NARRATOR: Sylvia last dived here nearly fou…
Strategies for dividing by tenths
Let’s do a few more examples of thinking of strategies for dividing decimals. In the future, we’re going to come up with a more systematic way of doing it, but it’s really important to come up with some of these strategies because it gives you an intuitio…
Motivations for English colonization
In the last video, we discussed why it took England another 100 years to start colonizing the New World after Christopher Columbus first set foot in Hispaniola. Among those reasons was conflict within the United Kingdom, colonial projects closer to home, …