The length of minute hand of a clock is 5.2 cm. What is the area covered by this in 10 minutes  Options.
A) 15.27  B) 14.15  C) 17.27  D) 18.27  E) 19.27
area of circle is pi*r^2   but in 10 minutes area covered is  (10/60)*360= 
<gadget id="calculator"> (10/60)*360</gadget>
<output>60</output>
60 degree   so formula is pi*r^2*(angle/360)=3.14*(5.2^2)*(60/360)=14.15 cm^2   ANSWER:14.15
<result>B</result>
The length of minute hand of a clock is 5.2 cm. What is the area covered by this in 10 minutes