Question

'/DOA' and 'ABCD' are the two diagonals of a square 'O.AC' which intersect at 'ABCD' is one diagonal of a square 'BD' . Find the measure of 'AC' .​

Answer 1

Answer:

all angles in a square are 90

AC is a diagonal so it bisects angle a . in this way angle d is also bisected.

AC is again bisected by DB so

DOA=90