SOLUTION: Five concentric circles with radii 1, 2, 3, 4, and 5 are drawn as shown dividing the circle of radius 5 into five regions: a circle of radius 1 and 4 annuuli (rings). What is the p

Question 907049: Five concentric circles with radii 1, 2, 3, 4, and 5 are drawn as shown dividing the circle of radius 5 into five regions: a circle of radius 1 and 4 annuuli (rings). What is the probability that a point chosen randomly from within the circle of radius 5 lies in the annulus whose inner radius is 3 and who outer radius is 4?
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Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Find the areas for each of the 5 regions.

The total area is
The probability of being in each region is proportional to the area of the region divided by the area of the entire region.

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