Three ways to simplify food preparation and serving for Mrs. and Mr. Kumar are:
1. Pre-preparation of Ingredients – Chop, chop, and prepare ingredients in advance to save time during cooking.
2. Batch Cooking – Prepare food in large quantities and store it in portions to serve easily when guests arrive.
3. Set Up Buffet Style – Instead of serving food individually, set up a buffet where guests can serve themselves, reducing the need for serving each person.
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.