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11.05.2021 •
Mathematics
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Ответ:
Perimeter = 2W + 2L (there are four sides of a rectangle, two longer sides, two shorter, W and L)
65.6 = 2W + 2L
L = 3W so substitute 3W in for L
65.6 = 2W +2 (3W)
65.6 = 8W
W = 8.2 cm
L = 3(8.2)
L = 24.6cm