Vocabulary
Definition of Midpoint
The exact middle point
Line segments equal to length
What is a Right Angle?
An angle of 90 degrees in a corner of a square or at the intersection
Definition of Vertical Angles
Each of the pairs of opposite angles made by two intersecting lines.
What is a Transversal?
A line that passes through two lines in the same plane at two distinct points.
What is the compass used for in Geometry ?
Technical drawing instrument that can be used for inscribing circles or arcs
What is the Angle Addition Postulate?
Putting two angles side by side with vertices that creates a new angle.
Definition of an Obtuse Angle.
An angle larger than 90 degrees but less than 180 degrees
What are Supplementary Angles?
Either of two angles whose sum is 180 degrees
What are Interior Angles?
Any four angles formed inside two straight lines when these lines are intersected by a third straight line.
What is the Angle Bisector?
Relative lengths of the two segments that a triangle's side.
Describe the Segment Addition Postulate
Given two points A and C the third point lies on line segment AC
What is an Acute Angle ?
An angle smaller than a right angle
What are Complementary Lines?
Either of two angles whose sum is 90 degrees.
What are Exterior Angles?
An angle formed outside parallel lines by a third line that intersects them.
What is a Protractor?
An instrument for measuring angles, typically in the form of a flat semicircle
Definition of the line segment
Part of a line that is bounded by two distinct end points
What is a Straight Angle
An angle of 180 degrees
What are Parallel Lines ?
Lines in a plane that do not meet or intersect.
What are Corresponding angles?
The angles in matching corners
What are Congruent Angles?
Angles with the same shape and size
What is an angle?
The space between two intersecting lines or surfaces at or close to the point they meet
What are Adjacent Angles?
Two angles with a common side and vertex that don't overlap.
What are Perpendicular Lines?
Relationship between two lines which meet at a right angle
What are alternative Interior Angles?
Pair of angles on the inner side of each of those two lines.