小曾做了一个长方体纸盒,所有棱长的和是120,长宽高的比是5:3:2,该长方体纸盒的体积是多少?( )A. 810 B. 375 C. 288 D. 180

作者: rantiku 人气: - 评论: 0
问题 小曾做了一个长方体纸盒,所有棱长的和是120,长宽高的比是5:3:2,该长方体纸盒的体积是多少?( ) A. 810 B. 375 C. 288 D. 180
选项
答案 A
解析 根据题意可知,长+宽+高=120 + 4 = 30,已知长宽高的比是5 : 3 : 2,所以该长方体纸盒的长为15,宽为9,高为6,体积=长×宽×高=15×9×6 = 810。所以选A。

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