Geometry

1234567891011121314151617181920
Across
  1. 2. The __________ is 2/3 of the distance from each vertex to the midpoint on opposite side. It is the point of concurrency of medians that are always in the triangle.
  2. 6. A quadrilateral with both pairs of opposite sides. The diagonals bisect each other.
  3. 9. Has EXACTLY one pair of parallel sides. Has 2 bases and 2 legs.
  4. 11. An operation that maps an original geometric figure. Reflection, rotation, and translation are ____________.
  5. 12. Has EXACTLY 2 pairs of consecutive congruent sides. The quadrilaterals diagonals are perpendicular.
  6. 14. The lines form a right angle. The diagonals of a rhombus are _________.
  7. 15. All the angles are right angles. Th opposite sides are parallel AND congruent.
  8. 16. If 2 sides of a triangle are congruent, then the angles opposite of those side are congruent. ___________ has 2 bases and 2 legs.
  9. 18. The measure of __________ is greater than either corresponding remote interior angles. m<4=m<1+m<2
  10. 19. The sum of __________ of n-sided polygon. (n-2)180
  11. 20. A parallelogram with 4 congruent sides. The diagonals are perpendicular.
Down
  1. 1. A segment that connects the midpoint of legs. 1/2(b1+b2)
  2. 3. The sum of _________ of any convex polygon is 360 degrees. An angle formed by one side of a polygon and extension of another side.
  3. 4. A parallelogram with 4 congruent sides and 4 right angles. It can be both a rectangle and rhombus.
  4. 5. A side of a triangle is longer than another side, then the angle measure across larger side is greater. An angle has a greater measure than another angle, the it is across from longer side.
  5. 7. The segment from a vertex of a triangle to the midpoint of the opposite side. It is another name for midsegment.
  6. 8. The point of concurrency of altitude is __________. The point of concurrency doesn't have to be in the triangle.
  7. 10. The same shape and same size. Corresponding angles and sides are _________ in the same shape and same size.
  8. 13. If 2 sides of a triangle are congruent to 2 sides of another triangle, and the included angle of first triangle is larger that that of the second. Then, third side of first triangle is longer than the third side of second triangle.
  9. 17. The segment from vertex to the side of opposite from vertex AND perpendicular. The ____________ can lie in the interior, exterior, or on the side of a triangle