Visual communication has several key advantages:
1. Clarity and Understanding: Visual elements such as charts, graphs, and diagrams can simplify complex information, making it easier for the audience to understand and remember.
2. Engagement and Retention: Visual content is often more engaging and memorable compared to text-based content. People are generally more likely to retain information when it is presented visually, helping in better learning and retention.
In the adjoining figure, $\triangle CAB$ is a right triangle, right angled at A and $AD \perp BC$. Prove that $\triangle ADB \sim \triangle CDA$. Further, if $BC = 10$ cm and $CD = 2$ cm, find the length of AD. 