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Geometry Proofs
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Geometry Proofs
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25 Questions

1.
Angles inside two parallel lines on the same side of the transversal are supplementary

2.
If point B is in the interior of ∠AOC, then m∠AOB+m∠BOC=m∠AOC

3. affects horizontal shift of a parabola (opposite of what you think)

4. Two triangles are similar if two corresponding sides are proportional and the included angle is congruent

5. congruent (sides)
(2/5 Characteristic of a Parallelogram)

6. vertical stretch (parabola gets skinnier)

7.
If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent.

8.
If two triangles are congruent then all their corresponding parts are congruent. Used in a proof after showing triangles are congruent.

9.
you can assume from a picture; they are supplementary

10.
If three points A, B, C are collinear and B is between A and C, then AB+BC=AC

11.
The same thing can be subtracted from both sides of an equation

12. two angles whose degree measures have a sum of 180º

13. a triangle that has two congruent sides

14.
A line segment (or angle) is congruent to itself

15. Point inside a triangle where all three medians meet; center of mass

16. Variables that represent the vertex

17. congruent (angles)
(3/5 Characteristic of a Parallelogram)

18. vertical shrink (parabola gets fatter)

19. A segment in a triangle that connects the vertex of an angle to the midpoint of the opposite side

20.
rise
------
run

21. if the alternate exterior angles are congruent, then the lines are parallel (used to prove lines are parallel)

22. are parallel to each other

23. measures 90º

24. are congruent to each other

25. if two sides of a triangle are congruent, then the angles opposite those sides are congruent