Question

the diagonal of a parallelogram bisect each other​

Answer 1

Answer:

Step-by-step explanation:

prove that trangle AOD is congruent to triangle BOC by SAS congruence criteria...

then show that OD=OB and OC=OA as they are corresponding parts of the congruent triangles

Answer 2

Step-by-step explanation:

Angle DOA is congurent to angle COB (by vertically opposite angle)

Angle DOA is congurent to angle COB (by vertically opposite angle)so Triangle DOA is congurent to Triangle COB (by SAS)

(by SAS)angle CDO is equal to angle ABO (by alternative angle)

(by SAS)angle CDO is equal to angle ABO (by alternative angle)so DC is parallel to AB (by interior opposite angle)

and vice versa to the other Triangles DCO & ABO

hence ,proves that the lines AC bisect DB