Unit 2

Indicates a location or position. It has no length, width, or thickness.

A set of points that extends infinitely

A set of points that extends indefinitely across a flat surface

Part of a line consisting of 2 points called endpoints and all points on the line between these endpoints

Exactly the same

The point that divides the segment into two congruent segments

A line or line segment that cuts a segment into 2 congruent segments

Part of a line that consists of a point on the line, called an endpoint, and allthe points on the other side of that endpoint

2 rays of the same line with a common endpoint and no other points in common

The space between the union of 2 rays with the same endpoint

Angle with sides that are opposite rays. It measures 180 degrees. It looks like a line, but it’s the space between the 2 rays

An angle whose measure is larger than 0 degrees and smaller than 90 degrees

Angle that measures greater than 90 degrees and smaller than 180 degrees

Angle that measures exactly 90 degrees

2 angles whose measures add up to 90 degrees

2 angles whose measures add up to 180 degrees

A ray whise endpoint is the vertex of the angle and divides the angle into 2 congruent angles

2 adjacent angles whose measures add to 180 degrees

2 angles that share a vertex but do not share any interior points

2 angles in which the sides of one angle are opposite rays to the sides of the second angle

2 equal sides, base angles are the same

3 equal sides, all sides are equal

Triangle with a 90 degree angle

Each angle is larger than 0 degrees and smaller than 90 degrees

Has an angle larger than 90 degrees, but less than 180 degrees

All angles are equal, 60 degrees

2 lines that meet or

no equal sides, no equal angles

triangle with a 90° angle

all angles are equal, each 60°

two lines that meet or intersect at 90° to form a right angle

A line or line segment that cut a segment into two equal parts at 90°

A line segment From any vertex to the midpoint of the opposite side

Line segment from any vertex to the opposite side perpendicular to the base

180 degrees