GGG
Просветленный
(36430)
1 неделю назад
L ≈ π(a + b)[1 + (3h/(10 + √(4 - 3h)))]
h = ((7-3)/(7+3))² = (4/10)² = 0.16:
L ≈ π(7 + 3)[1 + (3×0.16)/(10 + √(4 - 3×0.16))]
L ≈ 31.4159[1 + 0.48/(10 + √(4 - 0.48))]
L ≈ 31.4159[1 + 0.48/11.78]
L ≈ 31.4159 × 1.0407
L ≈ 32.7 см