Activity 3.1

1234567891011121314151617181920
Across
  1. 4. is a polygon formed by three segments joining noncollinear points
  2. 6. has four right angles.
  3. 7. has four right angles and four congruent sides.
  4. 9. is a segment contained in the ray, which bisects the angle of the triangle.
  5. 10. is the union of three or more coplanar segments, which intersects only at endpoints.
  6. 11. is greater than any of its parts.
  7. 13. is equal to one half the measure of its intercepted arc.
  8. 17. has exactly one pair of parallel sides.
  9. 18. is equal to the sum of its remote interior angles.
  10. 19. a distance from a given point in the plane.
  11. 20. is an interior angle which forms a linear pair with the given exterior angle.
Down
  1. 1. is equal to the sum of the squares of the lengths of two sides.
  2. 2. is a set of all points in a plane.
  3. 3. is an altitude of a triangle if its perpendicular from a vertex.
  4. 5. atleast two sides have the same length.
  5. 8. has four congruent sides.
  6. 12. is a angle inscribed in a semicircle.
  7. 14. are angle which are not adjacent to the given exterior angle of the triangle.
  8. 15. are a vertex and a midpoint of the opposite side.
  9. 16. has two pairs of parallel sides.