Geometry terms for parallel lines and congruent triangles

2. the angles across from each other where two lines cross
3. if you add all three interior angles, they will add up to 180 degrees.
7. a triangle with two equal sides and angles.
13. angles The angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior angles.
14. a pair of angles formed when a transversal line intersects two parallel lines, where the angles are located on the same side of the transversal and are both inside the parallel lines.
16. a point where two straight lines or rays meet.
17. a geometric figure is the same size and shape as itself; essentially, a figure is always equal to itself.
18. the angles formed at the "bottom" of the triangle and the base is considered as the bottom side.
19. two angles next to each other that together make a straight angle.
20. the longest side of a right triangle, which is always opposite of the right angle.

1. a pair of angles formed when a transversal intersects two parallel lines, where both angles lie outside the parallel lines and on the same side of the transversal.
4. angles that will be in the exact same place as the other line if you pick one line up and place it on top of the other.
5. a triangle with all three sides and angles of equal length.
6. two angles that when added together equal 180 degrees.
8. states that when a triangle's side is extended, the exterior angle formed is equal to the sum of the measures of the two opposite interior angles of the triangle
9. a triangle where all three sides are of different lengths
10. a pair of angles that lie on the outside of two lines cut by a transversal, but on opposite sides of the transversal.
11. if all three corresponding sides are equal and all the three corresponding angles are equal in measure.
12. two angles whose measures add up to 90 degrees.
15. a line that passes through two lines in the same plane