math!!!

• Point- it has only location but no dimension,length,width
• Line- a straight continous arrangement of infinitely many points
• Arrowheads- symbolizes infinity
• Plane- a flat surface that extends infinitley along its length and width
• Collinear Point- lie on the same line
• Non-collinear points- do not lie on the same line
• Coplanar points- lie on the same plane
• Non-coplanar points- do not lie on the same plane
• Intersection- geometric figure is the of all points
• Parallel line- two lins do not have any point in common and even
• Ray- one endpoint and extending in only one directions
• Opposite rays- common endpoint but extending in opposite directions
• Degrees- the unit used in measuring an angle
• Protractor- the device used in measuring an angle
• Kinds of an angle- acute angle,right angle,and obtuse angle
• Adjacent angle- with a common vertex a common side but no common interior points
• Complementary angles- the sum is 90 degrees.
• Supplementary angles- their sum is 180 degrees
• Linear angle- when they are adjacent and supplementary
• Congruent angles- their measure is equal
• Vertical angles- are formed when two straight lines intersects each other
• Intersecting lines- two coplanar lines that have a point in common
• Concurrent lines- three or more coplanar lines that intersects at exactly one point
• Perpendicular lines- two lines that intersecting and form a right angle
• Perpendicularity- is not limited to lines only
• Perpendicular Bisector- of a segment is a line perpendicular to the segment at its midpoint
• Parallel line- are coplanar lines that do not intersect
• Transversal- is a line intersecting two or more coplanar lines at different points