A circular dartboard of radius 1 foot is at a distance of 20 feet from you. You throw a dart at it and it hits the dartboard at some point Q in the circle. What is the probability that Q is closer to the center of the circle than the periphery?
Choose the correct choice.
A) 0.75 B) 1 C) 0.25 D) 0.5 E) 0.58
radius of inner dartboard/overall radius of dartboard   ((r/2)^2)/(r^2)=1/4= 
<gadget id="calculator">1/4</gadget>
<output>1/4 = around 0.25</output>
0.25   ANSWER:0.25
<result>C</result>
A circular dartboard of radius 1 foot is at a distance of 20 feet from you. You throw a dart at it and it hits the dartboard at some point Q in the circle. What is the probability that Q is closer to the center of the circle than the periphery?