RIC-1069 Maths terms and tables

List of mathematical terms
Pictograph (Picture graph)
A graph that represents data in picture
form, and where one picture may
represent one or more units [see p. 83].
e.g.
Pie graph (Pie chart; Circle graph)
A graph in which the sectors of a circle
are used to show a whole in terms of
its parts; i.e. each sector represents a
category and its fraction of the total
[see p. 83].
Place value
The value of each place in a numeration
system. [Thus the value of a digit
depends on its position in a numeral.]
e.g.
e.g.
In the numeral 643.5, the place
values in order from the left are
hundreds, tens, ones and tenths.
Plane
In geometry, a surface that is flat and has no boundaries.
Plane of symmetry
The plane that cuts a 3-D object in half,
such that each half is a mirror image of
the other with the plane as the mirror
[see p. 101].
e.g.
Platonic solids (Regular solids)
The five polyhedra in which all faces are congruent and all angles are
congruent; i.e. the regular tetrahedron, hexahedron (cube), octahedron,
dodecahedron and icosahedron. [Named after Plato the philosopher and
mathematician in ancient Greece who stated that they represented the five
elements of earth, wind, fire, water and the heavens or universe; see p. 99.]
Plumb line
A vertical line. [From the Latin plumbum meaning ‘lead’ and based on the
use of a piece of lead on a cord to check vertical positioning. See also
Perpendicular.]
Plus (Add , +)
The expression 9 + 5 may be read as ‘nine and five’, as ‘nine add five’ or
as ‘nine plus five’.
pm (p.m.)
Abbreviation for the Latin words post
meridiem meaning after noon.
40
e.g.
6 pm means 6 o’clock in the
evening.
Maths terms and tables R.I.C. Publications ® www.ricpublications.com.au