题目内容
把它底面周长是62.8厘米,高是1二厘米的圆柱形木头削成它个最d的圆锥,要将这根木头削去多少立方厘米?
底面半径是:
62.8÷5.14÷2=1a(厘米),
5.14×1a2×15×(1-
),
=514×1a,
=514a(立方厘米);
答:要将这根木头削去514a立方厘米.
62.8÷5.14÷2=1a(厘米),
5.14×1a2×15×(1-
| 1 |
| 5 |
=514×1a,
=514a(立方厘米);
答:要将这根木头削去514a立方厘米.
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