Answer:
1: correct, given
2: AB≅DE
3: Segment addition postulate
4: Segment addition postulate
5: CD+DE=CE
6: Symmetric
7: BD≅CD
Explanation:
Reflexive Property of Congruence
AB is congruent to AB
Symmetric Property of Congruence
If AB is congruent to CD, then CD is congruent to AB
Transitive Property of Congruence
If AB ≅ CD and CD ≅ EF, then AB ≅ EF.
Definition of Congruence
Two segments or angles that are congruent have the same measures
Definition of midpoint
A point that divides a segment into two congruent segments
Segment Addition Postulate
If B is between A and C, then AB + BC = AC
Definition of bisector
a line or segment that intersects a segment or angle and divides it into two congruent halves
HOPE THIS HELPS <33333333
ALSO: NOT 100% sure on these-