A dart hits the square dartboard shown. What is the probability that it lands in the shaded region?

Question

Answer 1

Everything is there that is needed.

The area of the square is 16 in²

The area of each circle is π. The radius is 1

The area of the shaded region is 16 - 4π in²

Answer 2

Area of the large square is 4mx4m = 16m²

Each circle has a radius of 1m has and Area of π1² = πm²

Then the area of 4 circles is 4πm².

So subtracting the area of the 4 circles from the area of the square is 16 - 4π = 3.43m²

so the probability of the dart hitting the shaded is 3.43/16 = 0.21