There are 27 cubes, each side measure 7 cm ,correct to the nearest cm .There cubes fit exactly into a cubes box .Find
a) the least possible length,
b)the greatest possible base area ,
c)the greatest possible volume ,
of the box
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2006-12-10 6:02 am
回答 (2)
2006-12-10 6:13 am
✔ 最佳答案
27 cubes (not balls) with each side 7 cm right? then you can think about the box contains 3 x 3 x 3 cubes.
a) length = 3 x 7 = 21cm
b) base area = 21 x 21 = 441 cm2
c) volume = 21 x 21 x 21 = 9261 cm3
2006-12-10 6:30 am
The 27 cubes can be arranged in 1X27
a) the least possible length is 7 cm
b)27X7=1323cm2
c)7X7X189=9261cm3
2006-12-09 22:31:36 補充：
b)189X7=1323cm2
a) the least possible length is 7 cm
b)27X7=1323cm2
c)7X7X189=9261cm3
2006-12-09 22:31:36 補充：
b)189X7=1323cm2
收錄日期: 2021-04-12 01:35:51
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