一堆圆锥形黄沙,底面周长是25.12m,高是1.5m,每立方米黄沙重1.5吨,这

2024-11-27 06:40:53
推荐回答(1个)
回答1:

25.12÷3.14÷2
=8÷2,
=4(米);
1
3
×3.14×4 2 ×1.5,
=
1
3
×3.14×16×1.5,
=3.14×16×0.5,
=25.12(立方米);
25.12×1.5=37.68(吨).
答:这椎黄沙重37.68吨.