Geometry

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Across
  1. 2. Polygon which is equilateral and equiangular
  2. 3. Two angles whose sum is 180 degrees
  3. 5. Triangle with a right angle
  4. 6. Two triangles are congruent if corresponding sides are congruent and corresponding angles are congruent
  5. 7. Sum of the area of all faces
  6. 11. Arc whose endpoints are the endpoints of the diameter
  7. 14. Two coplanar angles with a common vertex and a common side between them
  8. 17. The distance around a polygon
  9. 19. In a right triangle, the sum of the squares of the legs is equal to the square of the hypotenuse
  10. 20. Two lines that intersect at a right angle
  11. 21. Triangle with an obtuse angle
  12. 22. Divides a figure into two congruent halves that reflect each other
  13. 23. Number of cubic units contained in a solid
  14. 24. Noncoplanar lines that will not intersect
  15. 25. Triangle with all sides congruent
Down
  1. 1. Arc whose measure is greater than 180 degrees
  2. 4. Triangle with all angles congruent
  3. 8. Has a vertex and a circular base
  4. 9. Is a prism whose parallel faces are congruent triangles
  5. 10. A prism where all sides are squares
  6. 12. Angle whose vertex is on the circle and whose sides are chords of the circle
  7. 13. Arcs with equal measure in the same circle or in congruent circles
  8. 15. Triangle with at least two sides congruent
  9. 16. Has two congruent circular bases in parallel planes
  10. 18. Arc whose measure is less than 180 degrees