The length of minute hand of a clock is 5.4 cm. What is the area covered by this in 10 minutes Choose the correct choice from the following choices:
A) 15.27	B) 16.27	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*(5.4^2)*(60/360)=15.27 cm^2   15.27NSWER:15.27
<result>A</result>
The length of minute hand of a clock is 5.4 cm. What is the area covered by this in 10 minutes