integrated ii (d) 9th grade full year review

all definitions and important formulas from 9th grade are in these flashcards

point

a point is a location in space and has no size

line

a straight path that extends in both directions forever. it contains and infinite number of points and has no thickness

plane

a plane is a flat surface that never ends and has no thickness, 3 points necessary for plane

segment

part of a line consisting of two end points and all the points in between

ray

a portion of a line that starts on one point and extends in the other direction indefinitely

congruent segments

line segments that are the same length

midpoint

midpoint of a segment that divides it into two congruent segments

angle

formed by two rays with the same endpoint

rays

sides of the angle

two figures are congruent if they are identical