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Geometry Videos 251 videos

Surface Area of Cylinders
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Perimeter of Irregular Shapes
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Want to figure out the area and perimeter of irregular shapes? Break them down into regular shapes. For example, a flower can be broken down into s...

Introduction to 3D Geometry
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It's one thing when all those shapes are sitting flat on the page. But when they start popping out and invading our personal space bubble, we get a...

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Coordinate Geometry 294 Views


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Description:

Coordinate geometry isn't your average geometry. Check out the video to find out why.

Language:
English Language

Transcript

00:04

Coordinate Geometry, a la Shmoop. Alvin, Belinda and Cletus do not get along.

00:13

In fact, all three have restraining orders against each other.

00:21

Best not to ask. Let's just say that not everyone should be allowed to own a paintball gun.

00:33

Alvin is at point A. Belinda must stay 12 yards away, and she makes sure to put exactly

00:38

that much distance between them. Cletus has to stay 18 yards away from Belinda,

00:44

and he is at point C. However... these three can't be trusted to

00:48

be left alone. Which is where Doogie comes in.

00:51

He's an officer who has been assigned to keep an eye on the rabble-rousers, and make sure

00:54

they don't break the terms of the restraining orders.

01:00

So he's somewhere between Alvin and Cletus.

01:06

If there are 5 yards between Belinda and Doogie, how much distance could be between Alvin and

01:12

Doogie? Here are your choices:

01:17

Well, we know there are 12 yards between Alvin and Belinda...

01:25

...so if Belinda and Doogie are 5 yards apart, Doogie must be either 5 yards closer to Alvin

01:33

or 5 yards further away from him. Looks like Doogie is 12 plus-or-minus 5 yards

01:42

away from Alvin... ...which is either 7 or 17 yards.

02:00

Hullo, Answer "E." Good luck, Doogie -- you might want to consider

02:06

wearing an athletic protector. You don't want to

02:27

catch a paintball in your... area.

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