# Geometry

##### Across
1. 1. parallelogram with four congruent sides
2. 5. when the hypothesis and the conclusion is switched
3. 10. the side opposite the right angle in right triangle
4. 12. a statement that follows immediately from a theorem
5. 13. quadrilateral with two pairs of adjacent sides congruent and no opposite sided congruent
6. 16. a line that intersects two coplanar lines at two distinct points
7. 17. lines two lines that intersect to form right angles
8. 18. a line that intersects a circle at two points
9. 19. the space that a figure occupies
10. 20. when three or more lines intersect in one point
11. 21. a transformation whose preimage and image are similiar
##### Down
1. 2. a segment connecting the midpoints of two sides
2. 3. two figures that have the same shape but not necessarily the same size
3. 4. a statement that two ratios are equal
4. 6. angle an angle whose vertex is the center of the circle
5. 7. the distance around a circle
6. 8. formed by two rays with the same endpoint
7. 9. a segment whose endpoints are on a circle
8. 11. all sides congruent
9. 14. another name for an if-then statement
10. 15. an isometry in which a figure and its image have opposite orientations
11. 17. a three-dimensional figure whose surface are polygons