Geometry Vocabulary

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Across
  1. 4. a straight line that intersects a curve at two or more points.
  2. 10. the distance around a two-dimensional shape.
  3. 11. number of square units that covers a closed figure
  4. 12. angles:either of two angles whose sum is 90°
  5. 14. and "then" parts of a sentence are switched. For example, "If two numbers are both even, then their sum is even" is a true statement. The converse would be "If the sum of two numbers is even, then the numbers are even," which is not a true statement.
  6. 16. reasoning: a logical process
  7. 18. straight and extends in both directions without end .
  8. 21. the end or close
  9. 22. proof:A deductive argument that contains statements and reasons organized in two columns.
  10. 23. prism:A prism with bases that are not aligned one directly above the other.
  11. 24. triangle: a triangle with equal angles
  12. 27. a curve at a point is a straight line that touches the curve at that point.
Down
  1. 1. surface a solid object stands on, or the bottom line of a shape such as a triangle or rectangle.
  2. 2. points:A set of points, lines, line segments, rays or any other geometrical shapes that lie on the same plane Parallelogram:a quadrilateral whose opposite sides is parallel and equal and opposite angles are equal.
  3. 3. arc:the shorter arc
  4. 4. region in which objects exist.
  5. 5. plane is a flat surface with no thickness
  6. 6. part of a conditional statement just after the word if.
  7. 7. three-sided polygon is called to be a triangle
  8. 8. area:the surface area of a 3D figure, but excluding the area of any bases
  9. 9. lines:Lines that are at right angles (90°) to each other
  10. 13. lines:two lines that do not intersect and are not parallel
  11. 15. of a segment: is a line or a ray or a segment that divides a line segment into two equal parts.
  12. 17. three-dimensional geometric shape that tapers smoothly from a flat base
  13. 19. exact location. It has no size, only position
  14. 20. a plane shape with straight side
  15. 25. a curved line that is a part of a circle.
  16. 26. comparison of two numbers by division.
  17. 28. of a triangle:is the perpendicular distance from any of its vertices to the opposite side.