SOLUTION: a circular dartboard has a radius of 2 meters and a red circle in the center. Assume you hit the target at a ramdom point. For what radius of the center regions does P(hitting red)
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Question 446110: a circular dartboard has a radius of 2 meters and a red circle in the center. Assume you hit the target at a ramdom point. For what radius of the center regions does P(hitting red)= 0.6? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a circular dartboard has a radius of 2 meters and a red circle in the center. Assume you hit the target at a ramdom point. For what radius of the center regions does P(hitting red)= 0.6?
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Solve:
Area of red/total area = 0.6
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Area of red = 0.6(pi*2^2)
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Area of red = 0.6(4pi) = 2.4pi sq in.
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Solve: (pi)r^2 = 2.4(pi)
r^2 = 2.4
r = 1.55 inches
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Cheers,
Stan H.
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