## List of Math Words That Start With A

Below are common math words that start with a.

- Arithmetic mean
- Abscissa
- Arc measure
- Angle of depression
- Accumulation point
- Average
- Analogous
- Associative property
- Algebraic expression
- Adjacent
- Arc sine
- Addend
- Amplitude
- Ascending
- Axis
- Additive identity
- Associative law
- Arc secant
- Arc tangent
- Acute angle
- Algorithm
- Addition
- Angle
- Antiderivative
- Absolute convergence
- Alternate exterior angles
- Algebra
- Absolute value
- Axiom
- Asymptote
- Apothem
- Algebraic fraction
- Arc
- Arithmetic
- Arc cosecant
- Algebraic equation
- Area formula
- Arithmetic progression
- Abacus
- Area
- Arithmetic series
- Apex angle
- Arc cosine
- Altitude
- Arc length
- Average rate of change
- Apex
- Angle bisector
- Angle of elevation
- Alternate interior angles

## Math Terms That Start With A (Divided by Subjects)

### Geometry Terms That Start With A

**Angle:**A figure formed by two rays with a common endpoint.**Acute Triangle:**A triangle with all angles less than 90 degrees.**Altitude:**A line segment from a vertex perpendicular to the opposite side.**Arc:**A curved segment of a circle or other curve.**Area:**The measure of the space enclosed by a shape.**Adjacent Angles:**Angles that share a common side and vertex.**Apex:**The highest point of a pyramid or cone.**Area of a Circle:**The space enclosed by a circular shape.**Alternate Interior Angles:**Angles on opposite sides of a transversal and inside parallel lines.**Axis of Symmetry:**A line that divides a shape into two mirror-image halves.

### Algebra Terms That Start With A

**Algebraic Expression:**Combination of numbers, variables, and operations.**Absolute Value:**Distance of a number from zero.**Associative Property:**Grouping doesn’t affect operation result.**Arithmetic Sequence:**Ordered list with constant difference between terms.**Axis of Symmetry:**Vertical line dividing symmetric graph.**Asymptote:**Line approached but never touched by curve.**Additive Inverse:**Number added to get zero result.**Algebraic Equation:**Math statement with variables and equals sign.**Alternate Angles:**Opposite angles formed by intersecting lines.**Analyze:**Examine data for patterns and insights.

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