I accumulated cubes whose one side is 2 cm as shown in the figure and I painted the surface of this solid including the bottom.
And after paint got dry, I dissect it to pieces one by one.
(1) Find the number of the cube of which three faces are painted.
(2) Find the sum total of the area of the face which is not painted.
And after paint got dry, I dissect it to pieces one by one.
(1) Find the number of the cube of which three faces are painted.
(2) Find the sum total of the area of the face which is not painted.
Answer
(1) 16 pieces
(2) 504 cm2
(2) 504 cm2
Reference
