Aa

Bb

Cc

Dd

Ee

Ff

Gg

Hh

Ii

Jj

Kk

Ll

Mm

Nn

Oo

Pp

Qq

Rr

Ss

Tt

Uu

Vv

Ww

Xx

Yy

Zz

	Rr
radian radical, radicand radius radix raise random, random sample random variable range in statistics range of a function range of probability rate ratio rational expressions rational functions rational numbers raw data ray real numbers	reciprocal rectangle rectangular numbers rectangular prism rectilinear recurring decimal reduce, reduce a fraction reflection reflection symmetry reflex angle regrouping regular polygons regular polyhedrons related fractions relative frequency relatively prime numbers remainder repeated addition	repeated subtraction repeating decimal revolution rhombus rhythmic counting right angle right-angled triangle right prism rigid rigid motion rise Roman numerals rotation rotational symmetry round, rounding row rules of exponents run

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