The length of AD of the given triangle is; AD = 8
Concept of Similar Triangles
From the concept of similar triangles which we want to apply to the given triangle with dimensions given, we can deduce that;
4/x = 2/4
Cross multiply to get;
2x = 16
Divide both sides by 2 to get;
2x/2 = 16/2
x = 8
Since x = 8, then it means that AD = 8
Read more about similar triangles at; https://brainly.com/question/11920446
