Geometry

2. a rectangle having all four sides of equal length
8. the intersection point of two sides of a plane figure
11. a straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end
12. Segment one part of a line
13. triangle is a triangle with all three angles less than 90
14. Triangle a triangle with all sides equal and all angles equal
15. Triangle A triangle with all three sides with different lengths
16. Triangle a triangle which has two sides equal
18. a quadrilateral having both pairs of opposite sides parallel to each other
19. a straight line extending from the center of a circle or sphere to the circumference or surface

1. Angle Angles that share a vertex, one side, and no interior points
3. a polygon with four sides
4. Line Segments two line segments which cross to form 90 degree angles
5. Exterior Angles Angles created when a transversal intersects with two lines. They lie on opposite sides of the transversal, and on the exterior of the space between the two lines.
6. bisector a ray that cuts the angle exactly in half, making two equal angles.
7. a quadrilateral plane figure having two parallel and two nonparallel sides
9. a parallelogram having four right angles
10. Angle an angle greater than 90 degrees but less than 180 degrees
17. an equilateral parallelogram having oblique angles
19. Angle a 90 degree angle