Geometry Terms

2. a straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end
5. a quadrilateral having both pairs of opposite sides parallel to each other
6. a straight line extending from the center of a circle or sphere to the circumference or surface
7. a triangle with one internal angle equal to 90 degrees
8. a 90 degree angle
9. a polygon with 5 sides and 5 angles
10. the part of a straight line considered as originating at a point on the line and as extending in one direction from that point
11. the intersection point of two sides of a plane figure
12. a closed plane curve consisting of all points at a given distance from a point within it called the center
14. a polygon having eight angles and eight sides
15. a continuous extent of length
16. a triangle with all sides equal and all angles equal
19. a rectangle having all four sides of equal length
21. a parallelogram having four right angles

1. a segments that do not intersect
3. a polygon with four sides
4. a triangle having three unequal sides and angles
5. two line segments which cross to form 90 degree angles
13. a quadrilateral plane figure having two parallel and two nonparallel sides
17. an angle less than 90 degrees but greater than 0 degrees
18. an equilateral parallelogram having oblique angles
20. a polygon having six sides and six angles