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.

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 >).

A quadrat is a square ( of either metal, wood, or plastic ) used in ecology and geography to isolate a sample, usually about 1m < sup > 2 </ sup > or 0. 25m < sup > 2 </ sup >.

Sampling of plants or animals that do not move much ( such as snails ), can be done using a sampling square called a quadrat.

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.

and in this square, the respective pairs made up of large and small odd ( Yang ) numbers, and those composed of large and small even ( Yin ) numbers, were all equal to each other.

( In particular, older editions of Settlers did not come with a frame for their board ; a separate add-on was made available for players of the older-edition Settlers games, containing the newer edition frames, so as to make them compatible with the newer edition of Seafarers ; the older edition of Seafarers included a square frame, and while both older and newer editions of the frames have the same width across, the newer edition is not square-shaped, and is longer down the middle of the board compared to the sides.

Hoxha assembled the entire population in the capital's largest square, requested that they kneel, and made them take a two-thousand word oath of " eternal fidelity " and " gratitude " to their " beloved father " and " great liberator " to whom the people owed " everything.

Excavations made in 1879 and 1880 led to the discovery of the remains of this station, arranged round three sides of a courtyard some 100 ft. square, including traces of baths and other buildings, and a massive embanking wall above them, some 150 ft. in length, to protect them from landslips, while a discharge certificate ( tabula honestae missionis ) of sailors who had served in the Ravenna's fleet was found in some ruins here or hereabouts.

" He also made visits to his sister at Headingley, during which he visited the Brontë Parsonage at Haworth, where he was " chiefly impressed by a pair of Charlotte Brontë's cloth-topped boots, very small, with square toes and lacing up at the sides.

As part of these celebrations a statue of Count Tello, made by local sculptor Agustín Herranz, was set up in the Fueros square.

Constructed from large blocks of light-coloured stone, the tower was made up of three stages: a lower square section with a central core, a middle octagonal section, and, at the top, a circular section.

The tribunal made its award on February 19, 1968 ; delimiting a line of 403 kilometers that was later demarcated by joint survey teams, Of its original claim of some 9, 100 square kilometers, Pakistan was awarded only about 780 square kilometers.

The distinctively square English pencils continued to be made with sticks cut from natural graphite into the 1860s.

In calculating the speeds and fuel efficiencies, it was found that Rocket would still have won fair and square, since its relatively modern technology made it a much more reliable locomotive than the others.

The board is almost always made of rectangles ; square boards are very uncommon.

The shop owner, Bill Richard, made a deal with the Chicago Roller Skate Company to produce sets of skate wheels, which they attached to square wooden boards.

* China: Police have begun using a locally made analogue of the Segway to patrol certain public areas, such as Tian ' anmen square.

Although there are some generalizations which can be made for the dozens of other glyphs, which are based on the circle and square, the details are somewhat idiosyncratic and each needs to be memorized.

The City Council attempted to have him arrested but he out-manoeuvered them and became so popular that they made the square a public speaking area.

Although usually circular in cross-section, wire can be made in square or flattened rectangular cross-section, either for decorative purposes, or for technical purposes such as high-efficiency voice coils in loudspeakers.

Spacecraft power was provided by a total of 14, 742 solar cells which made up the 4 solar panels with a total area of 7. 7 square meters area.

Due to the hostile climate towards Baha ' is in Iran, the house has been the target of repeated attacks ; the house was destroyed in 1979, to be paved over two years later and made into a public square.

This diagram shows the behaviour of a signal ( made up of a square wave followed by a sine wave ) as it is passed through various distorting functions.

# the gain of each channel is made proportional to the rms signal level and inversely proportional to the mean square noise level in that channel.

Perhaps the extreme in this philosophy was reached during the 1940s and early 1950s, when the now-defunct True Temper corporation-a maker of garden tools-marketed a line of trolling rods of 4. 5 to 5 ft length made of tempered steel which were square in cross section.

Hooke's statements up to 1674 made no mention, however, that an inverse square law applies or might apply to these attractions.

Other less common variants are the all-metal whistle, the PVC whistle, the Flanna square holed whistle, and the wooden whistle.