请高手解决下列2题英语:()We will --------tomorrow.A.leave from home B.l
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请高手解决下列2题
英语:()We will --------tomorrow.
A.leave from home B.leave to home C.leave home
一个长方体的高减少了2cm后,就成为一个正方体,表面积减少48平方厘米,这个长方体的体积是()立方厘米.
英语:()We will --------tomorrow.
A.leave from home B.leave to home C.leave home
一个长方体的高减少了2cm后,就成为一个正方体,表面积减少48平方厘米,这个长方体的体积是()立方厘米.
284平方厘米
再问: 怎么求的,还缺一题
再答: 用48除以2得24米,这是正方体的周长,因为表面积送减少是的侧面积(即是减少的高和底面周长的乘积),所以再用24除以4得到6米是原长文体的边长,6再乘以6再乘以8(2加6)就得到284的答案. 另一题答案是C
再问: 你再改改,检查一下。你们谁先好我顶谁。
再问: 怎么求的,还缺一题
再答: 用48除以2得24米,这是正方体的周长,因为表面积送减少是的侧面积(即是减少的高和底面周长的乘积),所以再用24除以4得到6米是原长文体的边长,6再乘以6再乘以8(2加6)就得到284的答案. 另一题答案是C
再问: 你再改改,检查一下。你们谁先好我顶谁。
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