Geometry Vocab

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Across
  1. 4. line through the focus perpendicular to directrix
  2. 5. longest arc more than 180
  3. 8. the downward angle formed by a observer’s horizontal line and their direction line of vision to an object below
  4. 9. set of numbers a, b, and c, that follow a^2+b^2=c^2
  5. 10. reduction or enlargement through scale factor and vertex
  6. 11. if two sides and included angle are proportional, then the triangles are similar
  7. 13. quadrilateral with pairs of opposite sides and 4 right angles
  8. 14. opposite/adjacent
  9. 18. segment from the center of a regular polygon to the side of a polygon
  10. 19. 1/360 of rotation
  11. 20. distance of arc across endpoints
  12. 22. segment with endpoints at the center and any point the circle
  13. 26. square root of the product of two numbers
  14. 27. a quadrilateral with two different pairs of adjacent, equal-length sides
  15. 28. opposite/hypotenuse
  16. 29. quadrilateral with pairs of opposite sides
  17. 30. Shape with all points in being plane equidistant from the center
  18. 32. a^2=b^2+c^2-2bcCosA…
  19. 34. if all the side lengths of two triangles are proportional to the other, then the triangles are similar
  20. 35. an angle containing a vertex and chords in circle
  21. 37. a ratio of 2 sides in a right triangle
  22. 39. chord that passes through the center and is 2 radii
  23. 40. segment that connects midpoints of the non parallel sides of the trapezoid
Down
  1. 1. shortest arc less than 180
  2. 2. fixed internal point in parabola that helps determine the curve of the parabola
  3. 3. angle with vertex in the center of circle with the 2 radii
  4. 6. ratio of arc length to radius of circle
  5. 7. endpoints are diameter, exactly 180
  6. 12. the upward angle formed between an observer's horizontal line of sight and their direct line of vision to an object above
  7. 15. when circle contains all vertex of polygon
  8. 16. a quadrilateral with one pair of parallel sides
  9. 17. segment with endpoints on the circle
  10. 21. fixed line in a parabola that has the same distance from the vertex as the focus
  11. 23. smooth, continuous portion of the circumference of a circle or the boundary of any curved shape, made by two end points and central angle
  12. 24. if 2 angles of one triangle are congruent to the other, then the triangles are similar
  13. 25. a^2+b^2=c^2
  14. 31. adjacent/hypotenuse
  15. 33. circumference/diameter
  16. 34. a line that intersects a circle in two points
  17. 36. a set of points that are the same distance from a fixed point
  18. 38. when each vertex of a polygon lies on the circle