Question

line segment AB and CD bisects each other at point O. prove that :​

Answer 1

Answer:

as it's a vertically opposite angle -

a) side AB is equal to side CD

< o is equal to < o

side AC is to side DB

thus triangle AOC is congruent to BOD by SAS congruency condition

in b no leave the 1st line and the 4th and write that thus ac is equal to bd