LINE AND ANGLE RELATIONSHIPS C3 - M1T3

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Across
  1. 1. an angle between a side of a polygon and the extension of its adjacent side
  2. 3. angles that are on opposite sides of the transversal and are outside the other two lines
  3. 6. a line that intersects two or more lines
  4. 8. the measure of the exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles of the triangle
  5. 9. a truth without formal proof
  6. 10. angles that are on the same side of the transversal and are between the other two lines
  7. 11. two angles that are non-adjacent to the specified exterior angles
  8. 12. the sum of the measures of the interior angles of a triangle is 180 degrees
Down
  1. 2. states that if two angles of one triangle are congruent to the corresponding angles of another triangle, then the triangles are similar
  2. 4. angles that are on opposite sides of the transversal and are between the two other lines
  3. 5. a statement that has been proven on the basis of previously established statements
  4. 7. angles on the same side of the transversal and are outside the other two lines