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acute angle
An angle whose measure is between 0° and 90°.
,acute triangle
A triangle in which all three angles are acute angles.
algebraic expression
A mathematical phrase involving a variable or variables, numbers, and operations.
angle
Two rays that have the same endpoint.
, area
The number of square units needed to cover a surface or figure.
capacity
The volume of a container measured in liquid units.
Celsius (°C)
A metric unit for measuring temperature.
center
The point from which all points on a circle are equally distant.