# Geometry Vocabulary

Total Flash Cards » 60
 1. Rectangular Prism 2. Triangular Prism 3. Rectangular Pyramid 4. Square Pyramid 5. Sphere 6. Cylinder 7. Cone 8. A flat shape Plane Figure 9. Three dimensions, length, width, and height Solid Figure 10. A flat surface on a solid figure Face 11. 3 or more edges meet Vertex 12. Line segment where 2 faces meet Edge 13. Pattern that can be used to make a solid Net 14. A closed plane figure made up of line segments Polygon 15. 3 Sides Triangle 16. 4 Sides Quadrilateral 17. 5 Sides Pentagon 18. 6 Sides 19. 8 Sides Octogon 20. An exact location in space Point 21. A straight path of points that goes on and on in 2 directions Line 22. Part of a line. Has two endpoints Line segment 23. Part of a line. Has 1 endpoint and continues on in 1 direction Ray 24. Formed by 2 rays that have the same endpoint Angle 25. Common endpoint in an angle Vertex 26. A square corner (90 degrees) Right Angle 27. Less than a right angle (< 90 degrees) Acute Angle 28. Greater than a right angle (> 90 degrees) Obtuse Angle 29. Forms a straight line (180 degrees) Straight Angle 30. Lines that never intersect Parallel Lines 31. Lines that pass through the same point Intersecting Lines 32. Lines that form right angles Perpendicular Lines 33. Triangle with all sides the same length Equilateral Triangle 34. Triangle where at least 2 sides are the same length Isosceles Triangle 35. No sides of the triangle are the same length Scalene Triangle 36. One angle of the triangle is 90 degrees Right Triangle 37. All 3 angles of the triangle is < 90 degrees Acute triangle 38. One angle of the triangle is > 90 degrees Obtuse Triangle 39. 4 right angles Rectangle 40. 4 right angles and all sides are the same length Square 41. There is only one pair of parallel sides Trapezoid 42. Opposite sides are parallel Parallelogram 43. Opposite sides are parallel and all sides are the same length Rhombus 44. Closed plane figure with all points the same distance from the point Circle 45. Point in the middle of the circle Center 46. Any line segment that connects 2 points on the circle and passes through the center Diameter 47. Any line segment that connects the center to a point on the circle Radius 48. Any line segment that connects 2 points on a circle Chord 49. Moves a figure in a straight direction Slide or translation 50. Mirror image of a figure Flip or reflection 51. To move a figure about a point Turn or rotation 52. Figures that have the same size and shape Congruent 53. Tile patters that can be drawn by sliding, flipping, or turning shapes Tessellations 54. A figure that can be folded into 2 congruent halves that fit on top of eachother Symmetric 55. When folding a symmetric figure you create a ___ __ ______ Line of Symmetry 56. Figures that have the same shape but may or may not have the same size Similar Figures 57. The distance around a figure Perimeter (L+L+W+W) 58. The number or square units to cover the region inside a figure Area (L x W) 59. Sum of the area of all of its faces on a prism Surface Area 60. Number of cubic units needed to fill a solid figure Volume (L x W x H)