Geometry Terms

3. A system of reasoning that uses facts, rules, definitions, or properties to reach logical conclusions; a logical approach where you go from general ideas to specific conclusions.
4. a figure formed by two rays or lines that meet at a common end point; They are measured in degrees.
6. has no size; length, width, or height; It is represented by a dot and named by a capital letter.
8. set of points that has infinite length, but no width or height; It is named by a lower case letter or by any two points on the figure.
11. an angle that measures less than 90 degrees; an angle that measures more than zero degrees.
13. in a conditional statement, the statement that immediately follows the word "if"; It's an assumption or idea that's proposed for the purpose of argument so that it can be tested to see if it might be true.
14. a three-dimensional figure on which the faces are triangles and converge to a single point on top; They are named after the shape of their base.
17. The branch of mathematics that deals with points, lines, planes, and solids; This branch examines properties.
19. a statement that describes a fundamental relationship between the basic terms of geometry; They are accepted as true without proof
20. two lines that cross; two lines that form four right angles.

1. figure formed by three segments joining three noncolinear points; Each of the three points is a vertex of the figure and the segments are the sides.
2. a line segment that connects the center of a circle to its outer edges; The distance around a circle.
5. An educated guess based on known information; a mathematical statement that has not yet been rigorously proven.
7. reasoning that uses a number of specific examples to arrive at a plausible prediction; a method of drawing conclusions by going from the specific to the general.
9. set of points that has infinite length and width, but no height; Named with a capital 'funny font' letter
10. a unit used to measure distances around a circle; One of these is equal to 1/360 of a full circle.
12. a closed two-dimensional figured composed of straight line segments that meet at their end points; The line segments are called sides.
15. the point at which two sides of a two-dimensional figure or the edges of a three-dimensional figure meet; They are also known as corners.
16. non-coplanar lines; They will not intersect.
18. a proof that organizes statements in logical order, starting with given statements; Each statement is written in a box with the reason verifying the statement below the box