Mathematics Terms Part 1 of 2

Front

Whole Numbers

Back

Any of the numbers 0, 1, 2, 3, 4 and so on.

Front

Vertex

Back

The point at which two rays of an angle, or two line segments meet at a corner in a polygon.

Front

Straight Angle

Back

An angle that measures 180 degrees.

Front

Rounding

Back

Replacing an exact number with another number that tells about how much.

Front

Right Angle

Back

An angle that measures 90 degrees.

Front

Rectangle

Back

A quadrilateral with opposite sides that are equal, and four right angles.

Front

Obtuse Angle

Back

An angle measuring between 90 and 180 degrees.

Front

Quadrilateral

Back

A polygon with four sides.

Front

Product

Back

The answer to a multiplication problem.

Front

Polygon

Back

A 2D, closed figure with 3 or more sides.