Geometry Terms

5. an exact position or location on a plane surface
8. any of a group of instruments used to construct and measure plane angles.
10. an angle of 90° or ¹/₂ π radians.
11. angle is formed by two lines, line segments, or rays diverging from a vertex
12. a part cut off from a figure, especially a circular or spherical one, by a line or plane, as a part of a circular area contained by an arc and its chord or by two parallel lines or planes.
13. flat, two-dimensional surface that extends indefinitely.
15. two lines are parallel to each other if they never intersect each other, regardless of how far they are extended on either side
16. to measure distances or draw straight lines.

1. lines that intersect at a right angle.
2. a point in time halfway between the beginning and the end, as of a process, event, or situation
3. two lines that share exactly one point
4. an angle whose sides lie in opposite directions from the vertex in the same straight line and which equals two right angles.
6. the point opposite to and farthest from the base of a geometrical
7. a measurement of a plane angle in which one full rotation is 360 degrees
9. a straight one-dimensional figure having no thickness and extending infinitely in both directions
14. a vector from a point to a point