A target with a diameter of 28 cm has 4 scoring zones formed by concentric circles. The diameter of the center circle is 4 cm. The width of
each ring is 4 cm. A dart hits the target at a random point. Find the probability that it will hit a point in the blue region.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

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step-by-step explanation:

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