Health-Related Components:
1. Cardiovascular Endurance: The ability of the heart and lungs to supply oxygen during sustained physical activities.
Example: Running, swimming.
2. Flexibility: The range of motion in joints, which helps prevent injuries.
Example: Stretching exercises.
Skill-Related Components:
1. Agility: The ability to change direction quickly while maintaining control.
Example: Dodging in football.
2. Co-ordination: The ability to use multiple body parts smoothly and efficiently.
Example: Hitting a ball in tennis
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. 