把一堆底面直径2米,高1.2米的黄沙铺进长4米,宽2米的跳远沙坑,请算出沙坑的沙厚是多少厘米?

问题描述:

把一堆底面直径2米,高1.2米的黄沙铺进长4米,宽2米的跳远沙坑,请算出沙坑的沙厚是多少厘米?

3.14×(

2
2
)2×1.2÷(4×2),
=3.768÷8,
=0.471(米),
=47.1厘米,
答:沙坑的沙厚47.1厘米.