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6th grader geometry guide
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2. Lines
3. Points A Point A B A point is a precise location in space.It is labeled with a letter 4. Line Segments Any straight distance that starts at one spot and ends at another. 5. Rays
6. Line
7. Intersecting lines
8. Perpendicular lines
9. Parallel lines
10. Skew lines
11. Triangles
12. Right Angle
13. Obtuse Angle
14. Acute Angle
15. Scalene
16. Isosceles
17. Equilateral
18. Sum of Internal Angles
90 19. Quadrilaterals
20. Quadrilaterals
21. Trapezoid A quadrilateral with one set of parallel lines 22. Parallelogram A quadrilateral with two sets of parallel sides and opposite sides are congruent. 23. Rectangle A shape with four connected sides and opposite sides are parallel and congruent. 24. Rhombus A shape with four sides that are all congruent. 25. Square A shape with all sides congruent and opposite sides parallel. 26. Area of a rectangle Multiply length times width. Area=105 15in 7in 27. Area of a Square Multiply two of the sides. Area=9ft 3ft 3ft 28. Area of a Parallelogram Length times hight (worksheets will give you a dotted line for hight.) Area=15cm 5cm 3cm 29. Area of a trapezoid Add another trapezoid to make a rectangle. Thenmultiply length times width. Area= 126 6cm 7cm 3cm 30. Circles Chord Diameter Arc Radius Sector Circumference Area of a circle 31. Chord A line going through a circle. 32. Diameter The distance across a circle. 5cm 33. Arc A piece ofthe outside edge of a circle 34. Radius Half of the diameter. 35. Sector A piece of the area. 36. Circumference Diameter times 3.14 C=18.84 6cm 37. Area of a circle (Radius times radius) times 3.14 Area=78.5cm 5cm 38. Other polygons Hexagon Octagon Regular Polygon 39. Hexagon A shape with six equal sides. 40. Octagon A shape with eight equal sides.