Garrett throws a dart at a circular dartboard

Garrett throws a dart at a circular dart board. The dart board has a radius of 18 inches, and the bull’s eye in the center of the dart board has a radius of 4 inches. What is the probability that a dart thrown at random within the dartboard will hit the bull’s eye? Round your answer to the nearest tenth, if necessary.

To find the answer, we have to divide the area of a circle for bull’s eye by the area of the circle for dart board.

The area of a circle formula is:

A = π * r²

Dart board radius = 18

Bull’s eye radius = 4

Probability = A₂/A₁ = (π * 4²) / (π * 18²) = 4.94%

Math

3 years ago

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