Ruler		device used to measure angles
Ray		extends in one dimension, usually represented by arrowheads
Protractor		device used to measure surface areas
Point		where two rays come together to form an angle
Intersecting Lines		extends in two dimensions, represented by a shape that looks like a table top
Vertex		angle of measure
Parallel Lines		two lines that intersect to form a right angle
Straight Angle		lines that do not toch each other but run right beside each other
Segment		an angle with a measure equal to 180 degrees
Midpoint		distance between two points on a line
Perpundicular Lines		consists of two different rays tht have the same initial point
Plane		the point that divides or bisects a segment into two congruent segment
Degree		one or more sets of lines that cross each other
Line		part of a line that consists of a point
Right Angle		an angle with a measure equal to 90 degrees
Angle		represented by a small dot