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如图,有一个边长为20厘米的大正方体,分别在它的角上、棱上、面上各挖掉一个大小相同的小立方体后,表面积变为2454平方厘米,那么挖掉的小立方体的边长是()厘米?
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用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
已知一个正方体的体积是729立方厘米现在要在它的8个角上分别截去8个大小相同的小正方体使得截去后余下
8厘米
6厘米
4厘米
2厘米
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
用12个棱长1厘米的小正方体拼成一个长3厘米宽与高都是2厘米的大长方体再将它去掉一个小正方体如图所示
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