Geometry Triangles

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Across
  1. 2. The point where the three altitudes of a triangle intersect.
  2. 4. A perpendicular segment from a vertex to the line containing the opposite side.
  3. 5. A triangle where all three angles are less than 90 degrees.
  4. 11. A triangle in which all three sides are of equal length.
  5. 13. The angles formed by one side of a triangle and the extension of an adjacent side.
  6. 14. The point where the perpendicular bisectors of the sides of a triangle intersect.
  7. 17. A triangle with all sides of different lengths.
  8. 18. The point where the angle bisectors of a triangle intersect.
  9. 19. The longest side of a right-angled triangle, opposite the right angle.
  10. 22. Triangles with the same shape but possibly different sizes.
  11. 24. A triangle with one angle measuring 90 degrees.
  12. 25. The perpendicular distance from the base to the opposite vertex.
Down
  1. 1. The point where the three medians of a triangle intersect.
  2. 3. A polygon with three edges and three vertices.
  3. 6. Triangles that are identical in size and shape.
  4. 7. A triangle with one angle measuring more than 90 degrees.
  5. 8. A theorem stating that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
  6. 9. A line segment joining a vertex to the midpoint of the opposite side.
  7. 10. A triangle with at least two sides of equal length.
  8. 12. The two shorter sides of a right triangle.
  9. 15. Each angular point of a triangle.
  10. 16. The principle stating that the sum of the lengths of any two sides of a triangle is greater than the length of the remaining side.
  11. 20. The angles inside the triangle, which add up to 180 degrees.
  12. 21. A line that divides an angle into two equal parts.
  13. 23. The bottom side of a triangle, often referred to when calculating area.