GEOMETRY

5. A polygon with 10 sides.
7. A line segment drawn from one vertex to another vertex.
9. Any line segment forming the polygon.
11. A line segment drawn from one vertex perpendicular to the opposite side.
13. A polygon with one or more interior angles greater than 180 degrees.
14. It comes from the Greek word "poly" and "gon".
15. An angle whose measure is greater than 180 degrees

1. A polygon with 12 sides
2. Two angles with common vertex and common side
3. Two angles whose sum of their measure is 180 degrees.
4. A polygon which has all its sides of equal length and all its angles of equal measures.
6. It is the union of non collinear ray with common endpoint.
8. The point in which two sides meet.
10. A polygon which has its sides of unequal length and its angles of unequal measures.
12. An angle whose measure is less than 90 degrees.