Math Crossword Help Please?

Whoever answers the most questions gets 10 points, or whoever recommends a crossword solving site that works really well. Thanx Much in advance!! :D

Across

1. The real number that corresponds to a point on a line. ??o???????

4. A ________ has no dimension. It is usually represented by a small dot. ????t

7. To divide into two congruent parts. ??s???

10. Points that lie on the same plane. c???a???????t?

12. A construction tool used to draw segments. A ruler without marks. ?t???g??????

15. When three points lie on a line, you can say that one of them is ________ the other two. ?e??ee?

Down

3. Consists of two different rays that have the same initial point. ?????

5. The set of points that two or more geometric figures have in common. ??????????o?

9. Two adjacent angles whose noncommon sides are opposite rays. ???????a?r

11. A ________ extends in two dimensions. It is usually represented by a shape that looks like a tabletop or wall. ?????