Name that Figure
What one-dimensional figure extends infinitely in two opposite directions and is named using any two points along it?
Line
What type of angle measures exactly 90 degrees?
Right
What is the exact center point that divides a line segment into two equal, smaller segments called?
Midpoint
What geometric term is used instead of "equals" to describe two figures that have the exact same size?
Congruent
What do you call two lines in the same plane that never intersect, no matter how far they are extended?
Parallel Lines
What flat, two-dimensional surface extends infinitely in all directions and is typically named using three non-collinear points?
Plane
Measuring exactly 180 degrees, what angle forms a perfectly flat line?
Straight
What do you call a ray, line, or segment that perfectly splits a single angle into two smaller, equal angles?
Angle Bisector
What postulate states that if Point B lies anywhere on a straight line between Point A and Point C, then the length of AB plus the length of BC equals the total length of AC?
Segment Addition Postulate
What do you call two lines that intersect to form four perfect 90-degree angles?
Perpendicular
What figure is composed of two endpoints and no arrows?
Any angle with a measure strictly between 0 degrees and 90 degrees falls into what category?
What is a line, ray, or segment that passes exactly through the midpoint of a line segment, cutting it in half?
Segment Bisector
What postulate states that if Point D lies in the interior of Angle ABC, then the measure of Angle ABD plus the measure of Angle DBC equals the total measure of Angle ABC?
Angle Addition Postulate
When drawing geometric diagrams, matching arrowheads placed on two different lines indicate what relationship?
They are parallel
What figure starts at a point and ends at an arrow?
Ray
What term describes an angle that measures strictly between 90 degrees and 180 degrees?
Obtuse
If an angle bisector cuts through a 120-degree obtuse angle, what is the degree measure of each newly formed smaller angle?
60 degrees
According to the Segment Addition Postulate, if segment XY is 12 units long, segment YZ is 8 units long, and Y is between X and Z, what is the length of segment XZ?
20 units
When two lines intersect, a small square drawn in the corner where they meet indicates what specific relationship?
They are perpendicular
When naming a ray, what specific point must always be written as the first letter?
Endpoint
If a line cuts an angle into 2 angles of the same size, what is it called?
Angle Bisector
If Point M is the midpoint of segment AB, then segment AM and MB are _________________
Congruent
According to the Angle Addition Postulate, if Angle DEF is a right angle, and a ray EG splits it so that Angle DEG is 35 degrees, what is the measure of Angle GEF?
55 degrees
If Line L and Line M are parallel, how would you describe the shortest measurable distance between them anywhere along the lines?
It is equal distance