Chapter 7 Vocabulary

3. Angle , An angle that measures less than 90º.
6. Angles, Angles with equal measures.
8. A segment that has both endpoints on the circle.
11. Triangle , A triangle containing a right angle.
12. Triangle, A triangle with three congruent sides.
15. Angles, Two angles whose measures add to 90º.
17. Triangle , A triangle with all angles measuring less than 90º.
18. Lines, Lines that have exactly one point in common.
19. Segment, A part of a line between two endpoints.
21. Lines, Lines that lie in different planes that are neither parallel nor intersecting.
22. A segment that passes through the center of a circle and has both endpoints on the circle.
23. A quadrilateral with exactly one pair of parallel sides.

1. Triangle , A triangle with at least two congruent sides.
2. Angles, A pair of opposite congruent angles formed by intersecting lines.
4. Sides, Sides that have the same length.
5. Angle, An angle that measures 180º.
7. , On an angle or polygon, the point where two sides intersect.
8. , The set of points in a plane that are all the same distance from a given point, called the center.
9. Triangle , A triangle with no congruent sides.
10. Angles, Two angles whose measures have a sum of 180º.
13. Polygons -,Polygons with the same shape and the same size.
14. A rectangle with four congruent sides.
16. A figure formed by two rays with a common endpoint called the vertex.
17. Angles, Angles in the same plane that have a common vertex and a common side.
20. A straight path that extends without end in opposite directions.