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
This Is The World's First Geared CVT and It Will Blow Your Mind - Ratio Zero Transmission
Today I have the privilege to hold in my hands something very special. This is the world’s first operational, gear-based, continuously variable transmission or CVT. And before I explain how this piece of absolute mechanical poetry actually works, allow me…
Derivative as a concept | Derivatives introduction | AP Calculus AB | Khan Academy
You are likely already familiar with the idea of a slope of a line. If you’re not, I encourage you to review it on Khan Academy. But all it is, it’s describing the rate of change of a vertical variable with respect to a horizontal variable. So, for examp…
The past tense | The parts of speech | Grammar | Khan Academy
Hello friends and welcome to the distant past! Because today we’re talking about the past tense, which refers to stuff that has already happened. There are many ways to form the past tense, but for right now, I just want to focus on the basic version, wh…
Why is the Speaker second in succession? | US Government and Civics | Khan Academy
Why is the Speaker second in succession to the President after the Vice President? The idea of succession actually was a little muddied, and it didn’t— it wasn’t until the 25th Amendment that actually, uh, the relationship between the President and the Vi…
See How America Celebrated the 2017 Total Solar Eclipse | National Geographic
Three McCrory here, Michael brush go Anjali. And here I am in Nashville, Tennessee, at the Adventure Science Center. Madisonville, Tennessee, at Sally Knox Vineyard. So we are at the Wilson County Fair here in Lebanon, Tennessee, here at NatGeo in Washin…
15 Things Rich People Advise But Never Do
Everyone looks for advice from the rich, but advice is not universally applicable, and even they don’t follow it, and for good reason. Here are 15 things rich people advise but never actually do. Welcome to Alux. Number one: go to school. Going to school…