Page 198 - MAT KS3 Y8 Cambridge CheckPoint

Glossary and index

π, pi the value of the circumference of common denominator a denominator
any circle divided by its diameter; it is used to add or subtract fractions with
approximately 3.14 165 different denominators, by producing
algebraically using algebra 24 equivalent fractions; the lowest common
denominator is the lowest common
alternate angles angles between two
parallel lines and a transversal that are in multiple of the denominators of the
opposite positions; they make a Z-shape 51 fractions being added or subtracted 74
common factor a number that divides
angle bisector a line drawn through an
into other numbers without remainder 11
angle from its vertex, dividing it into two
equal parts 124 common multiple a number that is a
multiple of two different numbers 11
approximate round a number to a suitable
degree of accuracy 41 compound shape (or composite shape)
a shape made up from simpler shapes 171
arc part of the circumference of a circle 120
congruent identical in shape and size 84
area the amount of surface covered by a
flat shape 45 construct (algebra) use information to
write a formula 99
at random see random
continuous data data that can take any
average a representative value; mode,
value within a given range 65
median and mean are examples 103
corresponding angles (in parallel lines)
bisect divide a line or angle into two angles between two parallel lines and a
equal parts 88
transversal, which are in the same relative
capacity the volume of liquid that can positions 51
be put into a container 45
corresponding angles (in polygons)
centre of enlargement the fixed point angles that are in the same relative position
of an enlargement 161 in two or more similar or congruent shapes 84
chord a line segment between two corresponding sides sides that are in the
points on the circumference of a circle 120 same relative position in two or more similar
circumference the perimeter of a circle 120 or congruent shapes 84

class a group in a set of continuous data 105 cube the result of multiplying three ‘lots’
class interval the width of a group or of the same number together; the cube of 5 is
3
interval in a grouped frequency table 66 125 because 5 cubed = 5 = 5 × 5 × 5 = 125 15
collect like terms gather, by addition cube root the number that produces the given
and subtraction, all like terms 96 number when cubed; the cube root of 125 =
3 125 = 5 15
combination of transformations two or
more transformations carried out one after decrease make or become smaller or
another 159 fewer in number 113

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