1011+Geometry+Vocabulary

=Geometry Vocabulary=



A __point__ marks an exact point in space.Use a letter to mark a point

A __line__ is an endless straight path.It has no end points





A __ray__ is a part of a line that has one end point and continues without end in one direction.



A __line segment__ is a line that includes two end points and any points in between them.







A __plane__ is an endless flat surface

An __angle__ is formed by two rays with the same end point.

The unit of meaurement for an an angle is a __degree__.

__Parellel lines__ are lines that never touch. __Intersecting lines__ are lines that cross at one point. Lines that form four square angles are called __perpendicular lines__.



__Acute Angle__ - an angle smaller than 90 degrees





__Obtuse Angle__ - an angle larger than 90 degrees, but less than 180 degrees

__Right Angle__ - a 90 degree angle __Hexagon__ - a figure that has six sides

__Pentagon__ - A polygon with five sides and five angles.



__Decagon__- a figure that has ten sides



__Ci____rcle__ - A closed figure with all points on the figure the same distance from the center point.



__Octagon__- a figure that has eight sides.



__Pentagon__ - A polygon with five sides and five angles.

__triangle__ -A polygon with three sides.



__quadrilateral-__ A polygon with four sides.