Answer:
AC = 9 in
Explanation:
We have two triangles
Triangle APC and triangle BPC
Side AP = side BP
Side CP is common
Angle P is also common
So side , angle and side are same for both triangles
Two sides are same for both triangles and included angle is also same
So they are congruent
Triangle APC is congruent to triangle BPC
Hence AC = CB
BC= 9 inches
So AC = 9 inches