• Plan: Organize the festival with student performances using homemade instruments.
• Materials: Use bottles as shakers, cans as drums, and rubber bands for string sounds.
• Execution: Conduct workshops for creating instruments and highlight sustainability.
• Message: Promote recycling and creative reuse of materials for art.
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. 