Pre-Algebra

19 terms

Ray

A part of a line that starts at one endpoint and extends forever.

Obtuse triangle

A triangle containing one obtuse angle.

Acute angle

An angle that measures less than 90 degrees.

Acute triangle

A triangle with all angles measuring less than 90 degrees.

Congruent

Having the same size and shape.

Plane

A flat surface that extends forever.

Sagment

A part of a line between two endpoints.

Line

A straight path that extends without end in opposite directions.

Right triangle

A triangle containing a right triangle.

Sepplementery angles

Two angles whose measures have a sum of 180 degrees

Complementery angles

Two angles whose measures add to 90 degrees.

Point

An exact location in space.

Obtuse angle

An angle whose measures is greater than 90 degrees but less than 180 degrees.

Angle

A line that is formed by two rays and with a common endpoint called the vertexe

Right angle

A angle that measures 90 degree.

Obtuse angle

A angle whos measures are greater than 90 degrees.

Transversal

A line that intersects any two or more other lines.

Parallel lines

Tow lines in a plane that never meet.

Perpendicular lines

Lines that intersect at 90 degree angles.