Across
- 3. a quadrilateral must be this is all sides are congruent
- 5. this type of triangle that contains one right angle
- 6. an object after it is transformed
- 9. a quadrilateral must be this if both pairs of opposite sides are congruent
- 12. lines that have negative reciprocal slopes of one another are this
- 13. a parallelogram must be this if the diagonals are perpendicular and congruent
- 14. a line drawn from the vertex of a triangle to the midpoint of the opposite side
- 15. two angles are this if their sum is equal to 180 degrees
- 17. property that justifies 3 = 3
Down
- 1. transformations that preserve distance are considered this
- 2. something that cuts a segment or angle into two equal parts
- 4. a line drawn from the vertex of a triangle, perpendicular to the opposite side
- 7. found by dividing the image by the preimage
- 8. a triangle is this if 2 sides are congruent
- 9. two lines that have the same slope
- 10. a parallelogram must be this if it contains one right angle
- 11. an object before it is transformed
- 16. another word for length
