A subset of a population used to represent the whole population. If an actual object measured 33 by 22 yards, a scale drawing of it might measure 33 by 22 millimeters. A model that represents an object or display in proportions based on a determined scale.
Scientific notation allows writing big and small numbers with only a few symbols.
A region bounded by an arc and two radiuses of a circle. The word wedge is sometimes used instead of sector. A fraction in which the numerator and denominator have no common factor except 1 and the numerator is less than the denominator. Also, a mixed number in which the fraction is in simplest form. An activity in which an object or event is represented by something else.