1	point		_____	two angles in the same plane that have the same vertex and a common side but do not have any interior points in common
2	line		_____	lines that meet to form right angles
3	ray		_____	the numbers on a protractor used to measure angles
4	line segment		_____	points not on the same line
5	plane		_____	if three sides of one triangle are congruent to three sides of another triangle, then the two triangles are congruent
6	postulates		_____	points on the same plane
7	noncollinear points		_____	a line that intersects two or more other lines, each at a different point.
8	coplanar points		_____	an angle that measures between 180 and 360 degrees
9	theorems		_____	an angle that measures 360 degrees
10	straight angle		_____	statements that can be proved
11	acute angle		_____	in a right triangle, the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse
12	obtuse angle		_____	angles that are interior angles on opposite sides of the transversal
13	transversal		_____	statements accepted without proof
14	perpendicular		_____	a triangle that has 3 sides all of different lengths
15	parallel		_____	if point B is in the interior of angle AOC then the measure of angle AOB + the measure of angle BOC is equal to the measure of angle AOC
16	alternate interior angles		_____	the two congruent sides of an isosceles triangle
17	same side interior angles		_____	lines that are equal distance from each other and will never meet
18	corresponding angles		_____	a tool used to measure angles
19	supplementary angles		_____	if the square of the length of the longest side of a triangle is equal to the sum of the squares of the lengths of the two shorter sides, then the triangle is a right triangle
20	complementary angles		_____	angles that are in the same position on the same side of a transversal. If you cut one out and layed it on top of the other they would match
21	protractor		_____	a part of a line with one endpoint. It has an infinite number of points on it.
22	scales		_____	2 angles whose measurements together add up to 180 degrees
23	adjacent angles		_____	in a right triangle, the side opposite the right angle
24	angle addition postulate		_____	angle that measures between 90 and 180 degrees
25	complete angle		_____	interior angles on the same side of the transversal
26	reflex angle		_____	a triangle that has 3 sides all of which are the same length
27	zero angle		_____	angle that measures between 0 and 90 degrees
28	isosceles triangle		_____	part of a line with two endpoints. It has an infinite number of points on it.
29	scalene triangle		_____	a triangle that has 2 sides with the same length
30	equilateral triangle		_____	has no size and no dimensions; indicates a definite location
31	equiangular triangle		_____	an angle that has a measurement of 0 degrees
32	legs		_____	measures 180 degrees
33	acute triangle		_____	a triangle with 3 acute angles
34	obtuse triangle		_____	a triangle that has 3 angles all of which are the same measurement
35	side-side-side postulate		_____	a triangle with one obtuse angle
36	side-angle-side postulate		_____	if two angles and the included side of one triangle are congruent to corresponding parts of another triangle, the triangles are congruent
37	angle-side-angle postulate		_____	a flat surface that has no thickness or boundaries
38	hypotenuse		_____	if two sides and the included angle of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent
39	pythagorean theorem		_____	straight, but it has no thickness. It is an infinite set of points that extends in both directions.
40	converse of the Pythagorean theorem		_____	2 angles whose measurements together add up to 90 degrees