用一条长25.16米的绳子围绕一棵大树的树干绕6圈还余下1.16米,这棵树的树干直径大约有多少米?
问题描述:
用一条长25.16米的绳子围绕一棵大树的树干绕6圈还余下1.16米,这棵树的树干直径大约有多少米?
答
(25.16-1.16)/6/3.14 ≈2.5
用一条长25.16米的绳子围绕一棵大树的树干绕6圈还余下1.16米,这棵树的树干直径大约有多少米?
(25.16-1.16)/6/3.14 ≈2.5