Triangles

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Across
  1. 2. triangle with two equal sides
  2. 4. if two figures can be superimposed on each other perfectly it is called
  3. 5. singular form of vertices
  4. 8. lines that connect opposite vertices of a figure are called
  5. 10. similar figures will have corresponding sides that are in the same
  6. 12. lines that do not intersect are
Down
  1. 1. line drawn perpendicular to any side from a vertex is called
  2. 3. a line with two endpoints is called a line
  3. 6. triangle with all equal sides
  4. 7. a closed figure with at least 3 sides
  5. 9. the longest side of a triangle
  6. 11. a right-angled triangle has altitude, a hypotenuse, and a