geometry crossword

1. Parallelogram with equal sides
5. solid figure bounded by six rectangular faces
7. Two straight lines with nothing in common
9. a straight line passing through a vertex and intersecting perpendicularly the side opposite this vertex
10. the ratio of the length of the adjacent side to the length of the hypotenuse
11. a function that "does exactly the opposite of what a given application does".
12. designates a square containing digits, where the total sum of each column is always the same result
14. circle passing through the three vertices of the triangle
15. Elements that determine the position of a point relative to a reference system, in a plane (abscissa, ordinate) or in space (abscissa, ordinate, coordinate).

2. a straight line that intersects a segment perpendicularly at its midpoint
3. two geometric objects that do not coincide
4. a means of representing three-dimensional objects in two dimensions.
6. a particular point on a figure where at least two segments or edges of the figure meet.
8. segment connecting two points on a circle or other curve.
13. segment joining the centre of the circle, O, at a point on the circle