# Measurements and Mathematics Terms

#### (mathematics is the deductive study of quantities, magnitudes, and shapes as determined by the use of numbers and symbols while every branch of science and engineering depends on mathematics; measurement is the process of associating numbers with physical quantities and phenomena and measurement is fundamental to the sciences; to engineering, construction, and other technical fields; and to almost all everyday activities)

parallel

Lines or planes that are equidistant from each other and do not intersect.

Any perpendicular distance between parallel lines or planes is the same at any location.

pentagons

Polygons (many angles) having five sides and five interior angles.

percent

A quantity based on parts of 100; for example, 20 percent is equivalent to 20/100.

perpendicular

At right angles to a line or plane.

polygon

A geometric figure that is bound by many straight lines or a two-dimensional geometric figure formed of three or more straight sides.

The literal etymological meaning is a figure of "many angles" or *poly-*, "many" + *gon*, "angle".

product

The result of a multiplication problem.

proper fraction

A fraction in which the numerator is smaller than the denominator.

proportion

An equality of two ratios.

quadrant

One of the four quarters into which the plane of a rectangular co-ordinate system.

quantification

The act of quantifying or giving a numerical value to a measurement.

quantify

To determine the quantity of a measurement.

quotient

The result of a division problem.

radiosonde

Balloon-borne radiosonde is a device that automatically measures such meteorological data as temperature, barometric pressure, and humidity and which sends the information to an earth station by radio.

radius

The distance between the center of a circle and any point on the circle's circumference.

rate

The relationship between two measurements of different units; for example, the change in distance with respect to time (miles per hour).

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