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Transversal: A line which intersects two coplanar lines at two different points.
Incenter: Is equidistant from the three sides of the triangle.
Centroid: The point of concurrency of the three medians of the triangle.
Orthocenter: The point of concurrency of the three altitudes of the triangle.
Circumcenter: Is equidistant from the vertices of the triangle.
Angle Bisector: A segment which bisects an angle of the triangle and whose endpoints are a vertex and a point on the opposite side.
Altitude: A segment from the vertex of the triangle perpendicular to the line containing the opposite side.
Midsegment Theorem: The segment joining the midpoints of two sides of a triangle is parallel to the third side and half as long as the length of the third side.
Concurrent Lines: (Segments or Rays) are lines that intersect in a single point.
Perpendicular Bisector: A line whose points are equidistant from the endpoints of the given side.
Median: A segment whose endpoints are a vertex of the triangle and the midpoint of the opposite side.
Skew Lines: Lines that are noncoplanar and do not intersect.
Parallel Lines: Lines that are coplanar and do not intersect.
Corresponding Angles: A pair of nonadjacent interior and exterior angles on the same side of transversal.
PCAC Postulate: If two parallel lines are cut by a transversal, then corresponding angles are congruent.
PAIC Theorem: If two parallel lines are cut by a transversal, then alternate interior angles are congruent.
PSSIAS Theorem: If two parallel lines are cut by a transversal, then same-side interior angles are supplementary.
Oblique Lines: Are intersecting lines that do not form a right angle.
PAEC Theorem: If two parallel lines are cut by a transversal, then alternate exterior angles are congruent.
Triangle: A ______ is formed by three noncollinear points connected by segments.
Across:2. | Is equidistant from the vertices of the triangle. | 6. | A segment which bisects an angle of the triangle and whose endpoints are a vertex and a point on the opposite side. | 8. | A segment from the vertex of the triangle perpendicular to the line containing the opposite side. | 11. | Lines that are coplanar and do not intersect. | 12. | If two parallel lines are cut by a transversal, then corresponding angles are congruent. |
| 15. | If two parallel lines are cut by a transversal, then alternate interior angles are congruent. | 16. | If two parallel lines are cut by a transversal, then alternate exterior angles are congruent. | 18. | Lines that are noncoplanar and do not intersect. | 19. | The segment joining the midpoints of two sides of a triangle is parallel to the third side and half as long as the length of the third side. | 20. | If two parallel lines are cut by a transversal, then same-side interior angles are supplementary. |
| | Down:1. | A pair of nonadjacent interior and exterior angles on the same side of transversal. | 3. | Is equidistant from the three sides of the triangle. | 4. | The point of concurrency of the three altitudes of the triangle. | 5. | A line whose points are equidistant from the endpoints of the given side. | 7. | (Segments or Rays) are lines that intersect in a single point. |
| 9. | Are intersecting lines that do not form a right angle. | 10. | A line which intersects two coplanar lines at two different points. | 13. | A ______ is formed by three noncollinear points connected by segments. | 14. | A segment whose endpoints are a vertex of the triangle and the midpoint of the opposite side. | 17. | The point of concurrency of the three medians of the triangle. |
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PuzzleFast.com, Noncommercial Use Only
Across:2. | Is equidistant from the vertices of the triangle. | 6. | A segment which bisects an angle of the triangle and whose endpoints are a vertex and a point on the opposite side. | 8. | A segment from the vertex of the triangle perpendicular to the line containing the opposite side. | 11. | Lines that are coplanar and do not intersect. | 12. | If two parallel lines are cut by a transversal, then corresponding angles are congruent. |
| 15. | If two parallel lines are cut by a transversal, then alternate interior angles are congruent. | 16. | If two parallel lines are cut by a transversal, then alternate exterior angles are congruent. | 18. | Lines that are noncoplanar and do not intersect. | 19. | The segment joining the midpoints of two sides of a triangle is parallel to the third side and half as long as the length of the third side. | 20. | If two parallel lines are cut by a transversal, then same-side interior angles are supplementary. |
| | Down:1. | A pair of nonadjacent interior and exterior angles on the same side of transversal. | 3. | Is equidistant from the three sides of the triangle. | 4. | The point of concurrency of the three altitudes of the triangle. | 5. | A line whose points are equidistant from the endpoints of the given side. | 7. | (Segments or Rays) are lines that intersect in a single point. |
| 9. | Are intersecting lines that do not form a right angle. | 10. | A line which intersects two coplanar lines at two different points. | 13. | A ______ is formed by three noncollinear points connected by segments. | 14. | A segment whose endpoints are a vertex of the triangle and the midpoint of the opposite side. | 17. | The point of concurrency of the three medians of the triangle. |
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© 2012
PuzzleFast.com, Noncommercial Use Only