Basic Figures Vocabulary

2. a line with a single endpoint (or point of origin) that extends infinitely in one direction
6. acting in conformity; something (as a cord or rope) that is long and thin and flexible
8. a transformation that turns a figure about a fixed point
11. 90 degree angle
12. a closed plane figure bounded by straight sides
15. change the position of (figures or bodies) in space without rotation
16. being everywhere equidistant and not intersecting
17. meet at a point
18. a flat, two-dimensional surface that extends infinitely far
19. the length of the closed curve of a circle
21. a straight line connecting two points on a curve
22. angles located on the same side to a transversal when parallel lines are cut by it
24. the same shape after translation
25. draw with suitable instruments and under specified conditions
27. the shape you get when you rotate a circle around an axis of symmetry
28. a region bounded by two radii and an arc lying between the radii
29. angle between 90 and 180 degrees

1. a location with no size, shape, length or depth
3. angles facing each other when two lines are cut by a transversal
4. angles located opposite each other when two lines meet
5. the length of a line segment between the center and circumference of a circle or sphere
7. the part of a line that connects two points
9. rounded like an egg
10. lying in the same plane
13. a quadrilateral whose opposite sides are both parallel and equal in length
14. a line that passes through two lines in the same plane at two distinct points
20. coinciding when superimposed
21. lying on the same line
23. the length of a straight line passing through the center of a circle and connecting two points on the circumference
26. two revolutions of a right angle
27. having an oblique or slanting direction or position; turn or place at an angle