The area of the full circle would be
.. A = π*(350 ft)² = 122,500π ft²
The irrigated sector is 220/360 of that area, or 235,183 ft².
-2y=11-x
-7x+11-x=-13
-8x=-24
x=3
-2y=11-3
-2y=8
y=-4
If a secant and a tangent of a circle are drawn from a point outside the circle, then the product of the lengths of the secant and its external segment equals the square of the length of the tangent segment.
y² = 7(15+7)
y² = 7*22
y² = 154
y = √154
y = 12.4 to the nearest tenth
You would divide 76 by 8. That would give you 9.5. Then you multiply by 10 and that gives you 95. Hope this helps (;