geometry crossword

4. opposite sides are parelle; opposite sides are congruent
5. two lines that are intersecting at a 90 degrees angle
12. an exterior is always equal to the sum of the two non-adjacent interior angles
14. 3/4= -4/3, 2= -1/2
16. angle greater than 180 degrees
17. have the same slope
18. non-coplanar lines that never intersect
20. A flat surface made up of points and extended indefinitely in all directions

1. points that lie on the same line
2. a measurable part of a line consisting of 2 end points
3. pair adjacent angles that are supplementary combined, they form a straight line
6. 2 congruent sides are called legs, legs intersect at a vertex
7. angle less than 90 degrees a right angle that is 90 degrees
8. the study of a triangles measurements
9. planes that never intersect
10. Y=Mx+b, M= slope, b=y-intercept
11. a location is a location with no size or shape
13. the common endpoint of an angle ( where the sides intersect)
15. lines are opposite recipicals
19. 2 angles directly across from each other and intersecting lines