Using the areas of the circles, the probability of landing in the shaded area of the picture is of 1/81.
What is the area of a circle?
The area of a circle of diameter d is given as follows:
[tex]A = 0.25\pi d^2[/tex].
For the smaller circle, the diameter is d = 6, hence the area is:
[tex]A_s = 0.25\pi \times 6^2 = 9\pi[/tex]
For the larger circle, the diameter is d = 54, hence the area is:
[tex]A_l = 0.25\pi \times 54^2 = 729\pi[/tex]
Hence the probability(desired area divided by total area) is:
[tex]p = \frac{9\pi}{729\pi} = \frac{1}{81}[/tex].
More can be learned about the area of a circle at https://brainly.com/question/17326298
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