Answer:
x = 16 cm
Explanation:
Given:
BD= 8 cm
OD = 12 cm
CD = 9.6 cm
To find:
find AB = x cm
ΔOCD is similar to ΔOAB
Which means that all corresponding side lengths are proportional.
We have the following proportion:

We are given that:
OB = OD + DB = 12 + 8 = 20 cm,
Taking Two ratio,

Plugging these values into the proportion to get:

Solving for x, we get:

Therefore, Value of x is 16 cm.