(1) The measure of the width of the given youth soccer field is 60 yards.
(2) The measure of the length of the given youth soccer field is 100 yards.
(3) The distance diagonally across the youth soccer field is 116.62 yards.
The given parameters;
(1) The width of the soccer field is calculated as;
P = 2(L + W)
320 = 2(40 + W + W)
320 = 2(40 + 2W)
320 = 80 + 4W
4W = 320 - 80
4W = 240
[tex]W = \frac{240}{4} \\\\W = 60 \ yards[/tex]
(2) The length of the soccer field is calculated as;
L = 40 + W
L = 40 + 60
L = 100 yards
(3) The the distance diagonally across the youth soccer field;
[tex]d^2 = L^2 + W^2\\\\d^2 = 100^2 + 60^2\\\\d^2 = 13600\\\\d = \sqrt{13600} \\\\d = 116.62 \ yards[/tex]
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