Answer:
You need to use the ruler to measure the sides. Find the area of the whole square and subtract that from the area of the white square. That's your answer.
.no lo sé, pero como necesito puntos, ¿sí?
There are total 6 numbers
less than or equal to 16 are 2 numbers
so probability of event A is 2/6 or 1/3 if simplified