Г = f/d
f + d = 29
f = 3,2d
29 = d + 3,2d
29 = 4,2d
d = 29/4,2 ≈ 6,9 ≈ 7 см
Ответ: 7 см
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Г = f/d
f + d = 29
f = 3,2d
29 = d + 3,2d
29 = 4,2d
d = 29/4,2 ≈ 6,9 ≈ 7 см
Ответ: 7 см