Geometry Vocabulary Set 1

123456789101112131415161718192021
Across
  1. 2. two lines that meet or intersect each other at right angles ( 90 ∘ )
  2. 9. A tool used to rule straight lines and measure distances.
  3. 11. those lines that are equidistant from each other and never meet, no matter how much they may be extended
  4. 12. identical in shape and size.
  5. 13. The part of a line that connects two points
  6. 14. an angle equal to 180 degrees.
  7. 16. A part of a line with a start point but no end point (it goes to infinity)
  8. 17. a geometrical figure formed when two rays meet at a common point called vertex
  9. 18. an angle that is exactly equal to 90 degrees (or π/2) in measure
  10. 19. Exactly the same amount or value
  11. 20. a triangle whose all three sides have different lengths, and all three angles are of different measures.
  12. 21. a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices.
Down
  1. 1. A line that splits an angle into two equal angles.
  2. 3. a semicircular geometry tool divided into 180 equal parts, each measuring 1°
  3. 4. an angle that measures greater than 0° and less than 90°.
  4. 5. An instrument with two arms, one sharp and one with a pencil that can be used to draw circles or arcs
  5. 6. divides a line segment into two equal parts
  6. 7. a flat surface that extends into infinity.
  7. 8. a straight one-dimensional figure that does not have a thickness, and it extends endlessly in both directions.
  8. 10. a type of angle that is always larger than 90° but less than 180°
  9. 15. A triangle with all three sides of equal length.