Question

the altitude CD to the hypotenuse AB of right triangle ABC seperates the hypotenuse into segments AD and DB. If AD = DB + 4 and CD = 12 centimeters, find DB, AD, and AB. Recall that the length of the altitude to the hypotenuse of a right triangle is the mean proportional between the lengths of the segments into which the hypotenuse is seperated, that is, AD/ CD = CD/ DB.