6th grader

1. Geometry guide

2. line A specific line going in one direction that never ends.

3. Skew Two lines that are not in the same plane.

4. point A specific dot in space.

5. Line segment A straight line that links two points.

6. Parallel lines two lines that don't intersect.

7. Intersecting lines Two lines that intersect.

8. angle Two lines that meet at a vertex.

9. complementary two angles that add up to 90 degrees + 45 45

10. Supplementary Two angles that add up to 180 degrees. + 90 90

11. obtuse An angle that is bigger than 90 degrees.,

12. Right An angle that is exactly 90 degrees.

13. acute An angle that is smaller than 90 degrees.

14. Triangle A shape with 3 sides.

15. Obtuse triangle A triangle that It's biggest angle is more than 90 degrees.

16. Acute triangle A triangle that it's biggest angle as an acute angle.

17. Right triangle A triangle that it's biggest angle is a right angle.

18. Quadrilateral Any shape with 4 sides

19. Square A shape with 2 pairs of congruent and parallel sides.

20. rectangle A shape with 4 right angles

21. trapezoid A shape with 4 sides ad only one pair of parallel sides.

22. parallelogram A flat shape with four sides in which each side is the same length as the side opposite.

23. Circle A shape that has no corners.

24. ray The measurement from the middle of a circle to the edge of a circle.

25. diameter The distance from one side of the circle to the opposite side the circle.

26. chord One point on on a circle connected to another point.

27. area of a circle The distance inside of a circle.

28. circumference The distance or measurement around the outside of a circle or any round shape.

29. arc The distance on the out side edge.

30. sector A piece of the area.

31. polygon A flat shape with three or more sides.

32. hexagon A shape with six sides.

33. pentagon A flat shape with five sides and five angles.

34. Octagon A flat shape with eight sides and eight angles.

35. END