AB AND AC ARE TWO CHORDS OF A CIRCLE(NONE OF THE TWO IS A DIAMETER) WHICH ARE PERPENDICULAR TO EACH OTHER. IF THE LENGTH OF EACH OF THESE CHORDS IS 4 CM, FIND THE AREA OF THE CIRCLE.

THE ABOVE IS A CAT QUESTION IT IS THERE IN THE SET OF 5 QUESTION. IN CAT QUOTIENT/ GEOMETRY TEST 3

THERE IN THE SOLUTION IT IS ONE OF THE CHORD IS TAKEN AS DIAMETER. how???????????

SECONDLY AC IS ALREADY GIVEN AS 5 CM BUT AGAIN ITS VALUE HAS BEEN TAKEN OUT USING THE PYTHAGORAS THEOREM. hoW???????????????????

PLEASE EXPLAIN..