And we want to know, what is the perimeter of ABCD? So let me write it down. The perimeter of rectangle ABCD is just going to be equal to the sum of the lengths of the sides.

And I'll do perimeter here on the left, and I'll do area here on the right. And you're probably pretty familiar with these concepts, but we'll revisit it just in case you are not.

And we know that AB is equal to 7, and we know that BC is equal to 5.

This is also going to be 2w over here.

Let's do a couple more of these.

28 meters.

Well one way to realize it is that the pier , the perimeter's the distance all the way around the rectangle.

Perimeter

So this right here, this is just a formula for the perimeter of a rectangle.

The enemy was entrenched all around the capital.

Environmental viscosity

Let's say I have another circle here.

Round them up.

Each iceberg has its own individual personality.

Of a jet...

What I want to do in this video is a fairly straightforward primer on perimeter and area.

The way to interpret this apparently simple graph is, on the vertical is an indication of how complex caregiver utterances are based on the length of utterances.

How do we inspire everyone around us?

So all we're interested in here is comparing the temperature of the beetle against the background.

Be kind to those around you.

We have to figure out its length as well. So, how do we figure that out?

Fringing on your territory?

So let me draw a square here. My best attempt. So this is A, B, C, D. And we're going to tell ourselves that this right here is a square.

No! Right and might are on our side.

The pond was encircled with trees.

Computer Aided Design, Computer Aided Manufacturing.

McGee, David... Perimeter.

You come with me. McGee, take the perimeter.

The lake is ten miles about.

Remember, a seamount turns into an island when it hits the surface. And what's the context of the Phoenix Islands?

I photographed this thing last week in Dorset.

Close your eyes for a second, maybe, and try to imagine the complexity of the surrounding gas, with its billions and billions of molecules going and bumping into each other and exchanges of energy all around your body and around you billions and billions of molecules.

Transport a measure on this circle

And the Italian Alders are a very good example.

This tree measures three meters around.

Well, it's going to be w w 2w 2w let me write this down

Area and Perimeter

It needed to know the exact distance, so he knew very precisely that the distance between the two cities was 500 miles.

gt gt Hugo Barra Everything gets out of the way Applause

Tall pine trees make a ring around the lake.

It means greedy.

The surrounding hills protected the town.

The tree is four feet around.

The lake is five kilometers round.

The earth goes around the sun.