One pair of opposite sides are parallel and equal in length.

The opposite sides of a rectangle are parallel.

The sum of the squares of the sides equals the sum of the squares of the diagonals.

In Euclidean geometry, a parallelogram is a (non self intersecting) quadrilateral with two pairs of parallel sides.

Let a trapezoid have vertices A, B, C, and D in sequence and have parallel sides AB and CD.

There is some disagreement whether parallelograms, which have two pairs of parallel sides, should be regarded as trapezoids.

Parallel universes.

Alan Moore is usually credited with creating the term.

The converse also holds If the sum of the distances from a point in the interior of a quadrilateral to the sides is independent of the location of the point, then the quadrilateral is a parallelogram.

4QMinorProphetsf, Col I and II and 4Q82 a.k.a.

And now I can start talking about parallel and series circuits.

Real world parallels? Compare this with this.

Delaney's article notes many other parallels as well.

This yields as a special case the well known formula for the area of a triangle, by considering a triangle as a degenerate trapezoid in which one of the parallel sides has shrunk to a point.

Goslin, M, and Morie, J. F., (1996).

However, very few parallel algorithms achieve optimal speed up.

The European ideal has parallels in other parts of the world.

Yes, both sides.

So what are the external parallels? For all research is artificial.

You could do parallel and series circuits for kids using this.

In general, two types of lenses exist convex lenses, which cause parallel light rays to converge, and concave lenses, which cause parallel light rays to diverge.

Two distinct planes perpendicular to the same line must be parallel to each other.

There are two sides of war.

A square has four sides.

Neither side would give up.

A hexagon has six sides.

All medals have two faces.

There are two sides to every story.

There are three sides to every story.

They take all the parallel incoming rays and focus it to a single spot.

Dima Khatib draws parallels to the occupation or liberation of Iraq, and says I hope Mr George Bush is not too busy at his ranch to watch how people get truly liberated.

Then let x and y be ordered 5 element vectors containing the above data x (1, 2, 3, 5, 8) and y (0.11, 0.12, 0.13, 0.15, 0.18).

Dependencies Understanding data dependencies is fundamental in implementing parallel algorithms.

We're catching wind from both sides.

Drag on corners or edges

A square has four equal sides.

And the parallels between the Gold Rush and the Internet Rush continue very strongly.

And parallel universes? Again dots there, rather than there, on a screen.

After all, the parallels between the two industries are central to the question of safety.

Some commentators have likened the transmission of memes to the spread of contagions.

Following the conclusion of the tour, the band took a break but continued writing.

Concretely, two equal area rectangles (with the same center and parallel sides) of different aspect ratios intersect in a rectangle whose aspect ratio is the geometric mean, and their hull (smallest rectangle which contains both of them) likewise has aspect ratio their geometric mean.

So it's got to be both sides.

It's a three sided box, basically.

But there have been mistakes on both sides.