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Across 4. angles formed by parallel lines and a transversal that lie outside parallel lines 8. slides 9. parts of congruent shapes that match 10. turns 11. line that makes two halves of a figure symmetrical (match) 12. line segment perpendicular to the bases with endpoints on the base and the side opposite the base 13. the distance from the center to any point on the circle 14. polygon that is equilateral and equiangular 16. closed figure with four sides and four vertices 20. angles formed by parallel lines and a transversal that are on opposite sides of the transversal and inside the parallel lines 21. the distance across the circle through its center 25. when all angles are congruent 29. lines that intersect to form a right angle 31. the distance around a circle 33. parallelogram with four right angles 36. figures that have the same size and same shape 37. angles formed by parallel lines and a transversal that lie inside parallel lines 38. if the sum of 2 angles measures 90 degrees, the angles are _____ 40. flips 41. a simple, closed figured formed by three or more line segments

Down 1. alter the size of a figure 2. angles that are on opposite sides of the transversal and outside the parallel lines 3. all sides are congruent 4. angle formed when a side polygon is extended 5. angles that are in the same position on the parallel lines in relation to the transversal 6. parallelorgram with four congruent sides and four right angles 7. the given point of a circle 12. two angles that have the same vertex, share a common side and do not overlap 15. any figure that can be turned or rotated less than 360 degrees about a fixed point so that the figure looks exactly as it does in its original position 17. quadrilateral with both pairs of opposite sides parallel and congruent 18. two pairs of opposite angles formed when two lines intersect 19. figure that has line symmetry 22. line that intersects two parallel lines forming eight angles 23. angle who has its vertex on the circle and sides that are chords 24. parallelogram with four congruent sides 26. angle whose vertex is the center of the circle 27. an angle inside a polygon 28. if 2 angles measure 180 degrees, the angles are _____ 30. quadrilateral with one pair of opposite sides parallel 31. segment of a circle whose endpoints are on the circle 32. length of an altitude 34. set of all points in a plan that are the same distance from a given point 35. a line segment in a polygon that joins two nonconsecutive vertices 39. 3.14 or 22/7