All Math Words Encyclopedia Home

# All Math Words Encyclopedia

### O

Oblate Spheroid

Oblique

Obtuse Angle

Obtuse Scalene Triangle see Obtuse Triangle

Obtuse Triangle

Octagon

Octagon, Regular see Octagon

Octahedron

Octahedron, Regular see Octahedron

Octant

Odd Function

Odd Number

Odds (Probability) see Probability

One and Only One see Unique

One to One Correspondence

One to One Mapping see One to One Correspondence

One, Division by see Properties of One

One, Multiplication by see Properties of One

One, Properties of see Properties of One

One, Property of Multiplying by see Property of Multiplication by 1

Open (Geometry)

Operand

Operation

Operations on Fractions

Operations, Order of see Order of Operations

Operator

Opposite Angle Congruence

Opposite Rays see Line

Opposite Transformation

Or see Disjunction

Or Rule see Logical Argument

Order

Order of Magnitude see Scientific Notation

Order of Operations

Ordered Pair

Ordered Triple see Ordered Pair

Ordinal Number

Ordinate see Ordered Pair

Orientation

Origin

Orthocenter

Orthogonal

Out of Phase see Phase Shift

Outcome

Outlier

Output

Oval

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