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Across
  1. 1. The non-equal side of an isosceles triangle is called its
  2. 6. polygon with three sides having three vertices
  3. 7. the angle that is formed with one side and the adjacent extended side of a triangle
  4. 9. triangle with all angles with the same measure and all three sides the same length
  5. 10. The meeting point of a pair of sides
Down
  1. 2. all angles with different measures and all three sides are different lengths
  2. 3. If the--- holds, the triangle must be right-angled.
  3. 4. triangle with two angles with the same measureScalene trianglethe same length
  4. 5. a line segment joining a vertex to the midpoint of the opposite side
  5. 8. a line segment through a vertex and perpendicular to a line containing the side opposite the vertex