In the International System of Units ( SI ), the standard unit of area is the square metre ( written as m < sup > 2 </ sup >), which is the area of a square whose sides are one metre long.

A square metre quadrat made of PVC pipe.

The SI unit of area is the square metre, which is considered an SI derived unit.

The U. S. survey acre is about 4, 046. 872 609 874 252 square metres ; its exact value ( m < sup > 2 </ sup >) is based on an inch defined by 1 metre = 39. 37 inches exactly, as established by the Mendenhall Order.

The candela is the luminous intensity, in the perpendicular direction, of a surface of 1 / 600 000 square metre of a black body at the temperature of freezing platinum under a pressure of 101 325 newtons per square metre.

In SI units, the current density is measured in amperes per square metre.

In June 2011 the average price of an apartment in and around Geneva was 13, 681 Swiss francs ( CHF ) per square metre ().

The average can be as high as 17, 589 Swiss francs ( CHF ) per square metre () for a luxury apartment and as low as 9, 847 Swiss francs ( CHF ) for an older or basic apartment.

For houses in and around Geneva, the average price was 11, 595 Swiss francs ( CHF ) per square metre () ( June 2011 ), with a lowest price per square metre () of 4, 874 Swiss francs ( CHF ), and a maximum price of 21, 966 Swiss francs ( CHF ).

The SI unit for luminance is candela per square metre ( cd / m < sup > 2 </ sup >).

A variety of units have been used for luminance, besides the candela per square metre.

One candela per square metre is equal to:

The SI unit for pressure is the pascal ( Pa ), equal to one newton per square metre ( N · m < sup >− 2 </ sup > or kg · m < sup >− 1 </ sup >· s < sup >− 2 </ sup >).

In the mts system, the unit of pressure was the pieze, equal to 1 sthene per square metre.

While pressure may be measured in any unit of force divided by any unit of area, the SI unit of pressure ( the newton per square metre ) is called the pascal ( Pa ) after the seventeenth-century philosopher and scientist Blaise Pascal.

These other units are called SI derived units, for example, the SI derived unit of area is square metre ( m < sup > 2 </ sup >), and of density is kilograms per cubic metre ( kg / m < sup > 3 </ sup >).

In point of fact, this is a beige box with a bright red door, about one and a half feet square and hung from the wall about six feet from the door to Wisman's right.

This is far from the vulgar, leering sexuality of the middle-class square in heat ''.

Mercer is supposed to have refused it with, `` Anyone who wears a square monacle must be affected ''!!

Hence the natural setting of tragedy is the palace gate, the public square, or the court chamber.

It is remembered and has been commemorated by a bust in a park and a square in the city which was renamed Piazzo Lauro Di Bosis after the war.

The Feeding of Birds is Prohibited in This square.

Chuck a length of 1/8'' '' dia. drill rod into a drill press or some similar turning device and while it is rotating file the end square and then file a slight taper 1/8'' '' long.

Sometimes it is necessary to roughly calculate the square inch area of the opening but the calculation can usually be made with sufficient accuracy that it won't affect the final computation.

If clay is slightly out of shape, square straight sides with guide sticks or rulers pressed against opposite sides, or smooth round pieces with damp fingers.

A very rough rule of thumb is that, under favorable conditions, you'll need 15 BTU's of cooling for every square foot of your house.

A large picnic area or camping development is most efficient in shape as a square or rectangle several hundred feet in width in preference to a long narrow area less than one hundred feet wide.

The last column shows the rate of exchange that would have been observed at a relative intensity of 4 ( 14.7 cm. distance ) calculated on the assumptions that the incident light intensity is inversely proportional to the square of the distance of the lamp from the cell and that the rate is directly proportional to the incident light intensity.

On C, from the point P at Af to the point Q at Af, we construct the chord, and upon the chord as a side erect a square in such a way that as S approaches zero the square is inside C.

Each specimen is approximately 16 inches square.

Second, they believed it important to determine the fate of the captain -- a man whose name is permanently stamped on our maps, on American towns and counties, on a great American river, and on half a million square miles of Arctic seas.

Lagrange's law says that its velocity is equal to the square root of the product of the depth times the acceleration due to gravity.

Your first impression of this elongated square with its three elegant fountains, its two churches that almost face each other, and its russet-colored buildings, is a sense of restful spaciousness -- particularly welcome after wandering around the narrow and dark streets that you have followed since starting this walk.

`` Which is a break as the area to search is less than a square mile '', she added as she swung her legs over the transom.

In this historic square are several statues, but the one that stands out over the others is that of Gen. Andrew Jackson, hero of the Battle of New Orleans.

But, again, we have no real evidence on this from that quarter until the close of the ninth century A.D., when an Arabic scholar, Tabit Ibn Korra ( 836-901 ) is said to have discussed the magic square of three.

If one takes the middle number, 5, and multiplies it by 3 ( the base number of the magic square of three ), the result is 15, which is also the constant sum of all the rows, columns, and two main diagonals.

The name " quarrel " is derived from the French carré, " square ", referring to the fact that they typically have square heads.

The square wave is derived from the sawtooth waveform using a simple, single-transistor waveshaping circuit.

Vitruvian Man by Leonardo da Vinci, an illustration of the human body inscribed in the circle and the square derived from a passage about geometry and human proportions in Vitruvius ' writings

When applying prefixes to derived units of area and volume that are expressed in terms of units of length squared or cubed, the square and cube operators are applied to the unit of length including the prefix, as illustrated here:

Newton's tract ' De motu ...', which he sent to Halley in late 1684, derived what are now known as the three laws of Kepler, assuming an inverse square law of force, and generalized the result to conic sections.

* Folk Dance / Barn dance: At English folk or country dances a very wide range of dances is performed, many of which are square dances: Playford style dances ; dances derived from the quadrille, for example “ La Russe ” published by H. D.

Since the 19th century, much of the square dance repertoire has been derived from jigs and reels from Scotland and Ireland, sometimes in relatively unaltered form, sometimes as played in the old time music tradition or as adapted by other cultures such as that of Quebec.

* Minuet, a dance from which square dancing is derived

Square kilometre, symbol km < sup > 2 </ sup >, is a decimal multiple of the SI unit of surface area, the square metre, one of the SI derived units.

The candela per square metre ( cd / m < sup > 2 </ sup >) is the derived SI unit of luminance.

The square metre ( British spelling ) or square meter ( American spelling ) is the SI derived unit of area, with symbol m < sup > 2 </ sup > ( 33A1 in Unicode ).

This follows the more general rule derived from the mathematical relationship between aperture and exposure time — within reasonable ranges, exposure is proportional to the square of the aperture ratio and proportional to exposure time ; thus, to maintain a constant level of exposure, a change in aperture by a factor c requires a change in exposure time by a factor 1 / c² and vice-versa.

The different ways to form new genotypes can be derived using a Punnett square, where the fraction in each is equal to the product of the row and column probabilities.

Continuous power is sometimes incorrectly referred to as RMS power and is derived from Root mean square ( RMS ), a method for measuring AC voltage or current.

Usually the length of the hypotenuse is calculated using the square root function derived from the Pythagorean theorem.

A small company in Wales was already called Electronic Arts, and until 1997 Electronic Arts in the UK was known legally as EOA, a name derived from its square / circle / triangle logo.

The word " white " in the name " white rhinoceros " is a misinterpretation of the Afrikaans word wyd, itself derived from the Dutch word wijd for wide, referring to its square upper lip, as opposed to the pointed or hooked lip of the black rhinoceros.

The word quadrille is probably derived from the Spanish word cuadrillo ( Spanish diminutive of cuadro, meaning small square from Latin quadrus, quadra, quadratus meaning square, block or square section, squared or square-shaped, respectively ).