geometry crossword

123456789101112131415161718
Across
  1. 3. - the intersection of two noncollinear rays at a common endpoint
  2. 4. angle - an angle that is less than 90 degrees.
  3. 5. - having the same size and shape
  4. 6. - the point on a line segment halfway between the endpoints of the segment
  5. 7. - the intersection point of the altitudes drawn from the vertices of the triangle to the opposite sides.
  6. 9. polygon - If all the sides and interior angles of the polygons are equal
  7. 10. segment - a measurable part of a line that consists of two points called endpoints, and all of the points between them.
  8. 14. a solid figure with 2 congruent and parallel circular bases connected by a curved surface
  9. 15. - a convex quadrilateral with exactly two distinct pairs of adjacent congruent sides.
  10. 16. - a solid figure with a circular bas connected by a curved surface
  11. 18. example - an example that contradicts that the conjecture is not always true
Down
  1. 1. - a flat surface or area that extends infinitely in two dimensions and has no thickness
  2. 2. - a type of quadrilateral, whose opposite sides are equal and parallel.
  3. 8. the number of square units needed to cover a surface
  4. 9. motion - when an object is moved from one location to another and the size and shape of the object have not changed
  5. 11. - at equal distances.
  6. 12. - the point of concurrency of the perpendicular bisectors of the side of a triangle
  7. 13. - a three-dimensional solid object in which the two ends are identical.
  8. 14. an educated guess based on known information and specific examples
  9. 17. - the point of concurrency of the angle bisectors of a triangle.