The rate will be:
(area mowed)/(time taken)
=1017/9
=113 sq. feet/ min
Area of a sector: 1/2r^2 theta
Need theta
Let x be theta for now
42.25 pi = 1/2r^2x
84.5pi = r^2x
84.5pi = 169x
x = 84.5pi/169 = roughly 1.57 in radians
Radians => degrees is 1.57 * 180/pi or roughly 90.
5/12 is your answer to 5/6 times 1/2
The correct answer is C.<span>-20/27 because its in it lowest terms.</span>
