In each picture b

The figure is given below:

Let side of bigger square be 2x

Then, AE = x

∴ Area of square = 4 × side

⇒ 4 × 2x

⇒ 8x

Area of Δ AHE

⇒

∴ The area of yellow region = 4(Area of Δ AHE)

= 2x²

Area of green region = Area of big square – Area of yellow region

⇒ 8x – 2x²

Probability of dot is putted in the green part