Triangle

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Across
  1. 5. A triangle whose sides are all same length.
  2. 8. A three sided polygon.
  3. 9. The perpendicular distance from a vertex to the opposite side of a plane figure.
  4. 10. The distance along a line or figure from one point to another.
  5. 11. The point on a line segment that divides it into two congruent segments.
Down
  1. 1. The side of a triangle that contains one end of the altitude.
  2. 2. A triangle with no angle measuring 90 degree or more.
  3. 3. A triangle that has no congruent sides.
  4. 4. An infinite set of points forming a straight path extending in two directions.
  5. 6. A triangle that has at least two congruent sides.
  6. 7. A triangle that has one 90 degree.
  7. 12. A triangle whose largest angle measures greater than 90 degrees.