Angles Crossword Puzzle

5. a shape with at least three sides and angles
8. a pair of angles that lie on the outer side of two parallel lines but on either side of the transversal line
11. angles formed when two parallel and non-parallel lines are intersected by a transversal
14. a line that intersects with two parallel lines
17. angles that are on the same side of the transversal line and exterior of the parallel lines
18. the sum of two opposite interior angles of a triangle equals the exterior angle

1. a pair of non-adjacent angles formed when two lines intersect
2. two angles with the sum of 90 degrees
3. two angles with the sum of 180 degrees
4. the sum of the interior angles of a triangle must equal 180 degrees
6. a pair of angles each of which are on the same side of one of the two lines cut by a transversal and on the same side of the transversal
7. 360 degrees
9. angles that are on the same side of the transversal line and the interior of the parallel lines
10. two angles that have a common vertex and a common side but do not overlap
12. identical in shape
13. a shape with three sides and three angles
15. a polygon with equal angles and equal sides
16. two lines that don't meet