Essay about Angle and Congruent Angles

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THEOREMS 1. If two angles are right angles, they are congruent 2. If two angles are straight angles, they are congruent 3. 4. If angles are supplementary to the same angle, they are congruent 5. If angles are supplementary to congruent angles, they are congrurent 6. If angles are complementary to the same angle, they are congruent 7. If angles are complementary to the same angle, they are congruent 8. If a segment is added to congruent segments, the sums are congruent (addition property) 9. If an angle is added to congruent angles, the sum is congruent (addition property) 10. If congruents segments are added to congruent segments, the sums are congruent (addition) 11. If congruent angles are added to congruent angles, the sum is congruent 12. If a segment/angle is subtracted from congruent segments/angles, the differences are congruent (subtraction property) 13. If congruent segments/angles are subtracted from congruent segments/angles, the differences are congruent 14. If segments/angles are congruent, their multiples are congruent (multiplication property) 15. If segments/angles are congruent, their divisions are congruent (division property) 16. If angles/segments are congruent to the same angle/segment, they are congruent to each other (transitive) 17. If angles/segments are congruent to congruent angles/segments, they are congruent to each 18. 19. 20. 21. 22. Midpoint formula 23. If angles are both supplementary and congruent, they are right angles 24. If two points are each equidistant from the end points of a segment, the two points detrmine the perpendicular bisector of that segment. 25. If a point is on a perpendicular bisector of a segment, then it’s equidistant from the endpoints 26. Two nonvertical lines are parallel and their slopes are equal 27. If the slopes of two nonvertical lines are equal, they are parallel 28. If two lines are perpendicular and neither is vertical, the slopes are opposite reciprocals 29. If a lines slope is the opposite reciprocal of another, the lines are perpendicular 30. The measure of an exterior angle is greater than either remote interior angle measure 31. Alt interior angle theorem 32. Alt exterior angle theorem 33. Corresponding angle
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