Question

please answer this question

Answer 1

Answer:

I hope this helps.

As AB is a diameter, the angle ∠AMB is a right angle.

AS AC is a diameter, the angle ∠ANC is a right angle.

So ∠AMB = ∠ANC.

Also, ∠BAM = ∠CAN as these angles are vertically opposite.

Therefore triangles ΔAMB and ΔANC are similar

=> AM / AB = AN / AC

=> AM . AC = AN . AB