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Illustrated Mathematics Dictionary

Browse these definitions or use the Search function at left.

    Math Definitions -> R
Radian
Radical
Radicand
Radius
Radius (polygon)
Radix
Random
Random Sample
Range (statistics)
Range of a function
Ratio
Rational Number
Ray
Real Numbers
Reciprocal
Rectangle
Rectangular Prism
Recurring Decimal
Reduce
Reflection
Reflection Symmetry
Reflex Angle
Regular Polygon
Regular Polyhedron
Relatively Prime
Remainder
Revolution
Rhombus
Right Angle
Right-Angled Triangle
Rigid
Roman Numerals
Root
Rotation
Rotational Symmetry
Rounding
Row
Ruler