Math test 4 Flashcards
Point
A dot anywhere
Line
A line that never ends
Line segment
A line that ends at a point and starts with a point
Ray
A line with a starting point but goes on forever
Angle
When 2 rays or line segments meet at a vertex
Plane
A flat shape
Intersecting lines
When to lines meet at a pint and keep going
Perpendicular lines
When two lines meet at a 90 degree angle
Parallel lines
Lines that will never intersect
Collinear points
When points are on the same line
Acute angle
An angel that is less than 90 degrees
Obtuse angle
An angle that is more than 90 degrees
Right angle
An angle that is exactly 90 degrees
Strait angle
Looks like a line and it 180 degrees exactly
Reflex angle
An angle that is more that 180 degrees but less than 360 degrees
Congruent
Having the same size and shape
Interior
Inside
Exterior
Outside
Complementary angles
Two angles that add up to 90 degrees
Supplementary angles
Two angle that have a sum of 180
Adjacent angles
2 angles right next to eachother
Linear pair
2 adjacent angles that make a line
Vertical angles
Pair of opposite angles ( looks the same as intersecting lines )
Transversal
A line that intersects 2 or more lines
