Topic 8 - Geometry

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Across
  1. 1. a number used to multiply all sides of a shape to make it larger or smaller
  2. 3. a shape with four sides and three angles whose angles add up to 360º
  3. 10. a quadrilateral with only one pair of parallel sides
  4. 13. an angle that measures exactly 180º is a ___ angle.
  5. 15. a triangle with two equal sides and two equal angles
  6. 18. an angle that measures less than 90º is a ___ angle
  7. 19. a shape with three sides and three angles whose angles add up to 180º
  8. 20. a parallelogram where all four sides are congruent
  9. 22. a triangle with all acute angles
  10. 23. a quadrilateral where opposite sides are parallel and equal in length
  11. 25. an angle that measures exactly 90º is a ____ angle
  12. 26. a triangle with all different sides and angles
Down
  1. 2. angles whose measures add up to 90º are ___ angles
  2. 4. a parallelogram where all four angles are right angles
  3. 5. a triangle with three equal sides
  4. 6. a quadrilateral with two pairs of adjacent sides equal and one pair of opposite angles equal
  5. 7. a triangle with one right angle
  6. 8. angles that are across from each other when two lines cross and share a vertex are ___ angles
  7. 9. an angle that measures more than 90º but less than 180º is a ___ angle
  8. 11. Formed by two rays (or lines) that share a common endpoint called a vertex
  9. 12. a triangle with three equal angles
  10. 14. a triangle with one obtuse angle
  11. 16. angles whose measures add up to 180º are ___ angles
  12. 17. shapes or angles that are exactly the same size and shape
  13. 21. a parallelogram where all four sides are congruent and all angles are right angles
  14. 24. angles that share a common side and vertex are ___ angles