Geometry vocabulary

7. A flat shape. A quadrilateral having both pairs of opposite sides parallel to each other.
11. Lines on a plane. The lines cross each other.
13. A type of triangle. This triangle has two sides equal.
14. A type of triangle. The triangle has a 90 degree angle.
15. It is a slant.
18. Two lines that cross. They cross and make a 90 degree angle.
19. A Line in the middle of a sphere. The line divides the sphere into two hemispheres.
21. Part of a line. A line with two endpoints.

1. In or near of a larger area. A location at the middle of a shape.
2. The amount of space something takes up. It is also expressed in cubic units.
3. A type of triangle. The triangle has unequal sides.
4. A straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end. Double the radius.
5. It is not right or a parallel
6. A straight line extending from the center of a circle or sphere to the circumference or surface. This is half of the diameter.
8. An extent of length. It reaches on forever.
9. A position in space. A location.
10. The part of a straight line considered as originating at a point on the line. A line that extends in one direction from that point.
12. A type of triangle. The triangle has equal sides.
16. The intersection points of a plane shape. The point where angles form.
17. A continuous portion of a circle. A curved line
20. The line segment between two points on a given curve. A line segment whose points lie on a circle or arc.