SOLUTION: A pivot- circle irrigation system waters part of a fenced square field . if the spray extends to a distance of 72 feet, what is the total length of the fence around the field ?

Question 347070: A pivot- circle irrigation system waters part of a fenced square field . if the spray extends to a distance of 72 feet, what is the total length of the fence around the field ?

Answer by CharlesG2(834) (Show Source): You can put this solution on YOUR website!
A pivot- circle irrigation system waters part of a fenced square field . if the spray extends to a distance of 72 feet, what is the total length of the fence around the field ?

the spray goes from the center of the circle out to 72 feet, this is the radius of the circle

if the circle touches all 4 edges of the square, then half the length of
one of the sides of the square is the radius of the circle, then:

total length of fence around field = perimeter of square = P = 4 * 2 * 72
P = 4 * 2 * 72 = 4 * 144 = 576 feet

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