Question

一个圆锥形沙滩,量得底面周长12.56米,8米.现在要将这些沙铺在长6米,宽2米的沙坑里,能铺多厚

Answer 1

12.56/2/3.14=2m

2*2*1.8*(1/3)

=4/1.8*(1/3)

=4*0.6

=2.4立方米

2.4/4/2=0.3m