正方形的体积=棱长X棱长X棱长=0.456米
0.7X0.7X0.7=0.343
0.75X0.75X0.75=0.4218
0.76X0.76X0.76=0.438976
0.7697X 0.7697 X0.7697 =0.455999
0.77X0.77X0.77=0.456533
棱长要保留一位小数 则棱长≈0.7697厘米
所以表面积=棱长X棱长X6=0.7697X0.7697X6=3.554628 ≈3.6平方厘米
正方形的体积=棱长X棱长X棱长=0.456米
0.7X0.7X0.7=0.343
0.75X0.75X0.75=0.4218
0.76X0.76X0.76=0.438976
0.7697X 0.7697 X0.7697 =0.455999
0.77X0.77X0.77=0.456533
棱长要保留一位小数 则棱长≈0.7697厘米
所以表面积=棱长X棱长X6=0.7697X0.7697X6=3.554628 ≈3.6平方厘米