the h khoi lap phuong nho la:
\(1.1.1=1^3=1\left(cm^3\right)\)
the h khoi lap phuong lon la: 2197 (cm3)
ta goi canh hinh lap phuong lon la \(x\)
canh hinh lap phuong lon la:
\(x^3=2197\)
\(x^3=13^3\)
\(\Rightarrow x=13\)\(\left(cm\right)\)
vay canh lap phuong lon la \(13cm\)