Bright and warm colours like yellow and orange evoke positivity and energy as they resemble sunlight and warmth. On the contrary, dark colours like black or grey might create a dull or somber mood due to their association with darkness or sadness.
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. 