Let me write this down.

Why on earth are they called conic sections?

So your area this is exciting!

Fair enough.

Now, we have to worry about the perimeter here.

looks like

Looks Like

Shape

Shape

Plane

Plane

plane

Let's go back all the way over here, go back to the drawing.

We just rearranged its parts.

The area of this figure in furgles square furgles, I should say the area is three square furgles.

isosurface

Iso Surface

Flat Map

Cursor shape

Brush Shape

Brush shape

The figure below is a square with 4 congruent parallelograms in side.

In particular, it could invent things like a curve which fills the plane.

So the height is equal to the base minus 4. That's what the first sentence tells us.

And they tell us at the base is 5.

Well, let's think of it this way.

Now this particular transformation did not change the area of the original figure, so a six year old who plays with this has just discovered a clever algorithm to compute the area of any given parallelogram.

Cylindrical Hor.

Well, you can imagine.

He's the one able to build this shape deposition manufactured feet and toes.

Sector Surface

Now, if we take the plane and we tilt it down a little bit, so if instead of that we have a situation like this.

And then up here would be the intersection of the plane and the top one.

Random cell shape

But now there's this other interpretation here.

So, we get one... two... three square furgles.

So if my plane looks like this I know it's very hard to read now and you wanted the intersection of this plane, this green plane and the cone I should probably redraw it all, but hopefully you're not getting overwhelmingly confused the intersection would look like this.

If I were to just flip this over like this, so we're

smooth triangle

Rhombic dodecahedron

Snub dodecahedron

These are graphs that can be drawn in the plane on a flat piece of paper so that the edges don't cross.

The other way around is not necessarily true

First of all, a rhombus is a special case of a parallelogram

I'm going to measure the area in terms of square meters.