A=2piR
so 144pi=2piR
solve and you get R=72
so D= 144 ft
2/5 4/10 6/15 8/20 10/25 12/30 are all equivalent to 2/5
Not completely sure but i think it is 16
The area of the given trapezoid will be the sum of the areas of the triangular part and the rectangular part.
Now, the area of the rectangle,
is:
squared yards
Likewise, the area,
of the triangle will be:

Thus, the area of the trapezoid=
Thus the first option is the correct option.
The answer would be A. Make sure you also use BEDMAAS, and take care of the brackets first