A 20 cm long, 15 cm wide rectangular cardboard, four corners cut side length of 5 cm, do not cover the box, no cover how big cardboard box, can hold how much juice

A 20 cm long, 15 cm wide rectangular cardboard, four corners cut side length of 5 cm, do not cover the box, no cover how big cardboard box, can hold how much juice

(20 - 5×2)×(15 - 5×2)×5
= 10 ×5×5
=250 CC (ML)