Ac equals 5in cb equals 3in. what does ab equal to

The given measurements highlight that a scalene triangle is being discussed. This therefore highlights that AC is the hypotenuse and hence the longest side. On the other hand, CB is the base or the perpendicular. Solving this to find AB will result in the application of Pythagoras theorem whereby, AC^2 = AB^2 + CB^2. Solving this, AB is equal to 2 inches.