1.

'/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»

all ANGLES in a square are 90AC is a DIAGONAL so it bisects ANGLE a . in this WAY angle d is also BISECTED.AC is again bisected by DB soDOA=90



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