The answer would be 79.64
I circled the formula for the area of a sector.
12: twelve
1 rod(10 blocks)
2 cubes(2 singles blocks)
We will need a little more to answer on that that please.
(1.6666667)x+(.5)=0
1.6666667x=-.5
1.6666667x/1.666667=-.5/1.6666667
x= -.5/1.6666667
x=.3