1. Period 5 Nathan Rodriguez

2. -Point  a geometric element that has position but no extension; "a point is defined by its coordinates"

3. -Line (segment)  a line is a straight path that has no thickness and does not extend forever.

4. -Plane  a flat surface that has no thickness and extends forever.

5. -Angle  A figure formed by two rays with a common endpoint.

6. -perpendicular lines  Intersecting lines to form 90 degree angles.

7. -parallel lines  Lines in the same plane that don’t intersect.

8. -Triangle  A three-sided polygon.

9. -Right triangle  A triangle with one right angle.

10. -pentagon  A five-sided polygon.

11. -hexagon  A six-sided polygon.

12. -square  A quadrilateral with four congruent sides and for right angles.

13. -Rectangle  A quadrilateral with four right angles.

14. -trapezoid  A quadrilateral with exactly one pair of parallel sides.

15. -parallelogram  Quadrilateral with two pairs of parallel sides.

16. -circle  The set of points in a plane that are a fixed distance from a given point called the center of a circle.

17. -cylinder  A three-dimensional figure with two parallel congruent circular bases and a curved lateral surface that connects the bases.

18. -sphere  The set of points in a space that are a fixed distance from a given point called the center of the sphere.

19. -pyramid  A polyhedron formed by a polygonal base and triangular lateral faces that meet at a common vertex.

20. -Acute triangle  A triangle with three acute angles.

21. -obtuse triangle  A triangle with one obtuse angle.