1. (cuboid 1) has a surface area of 72 square centimeters and a volume of 12 cubic centimeters. (Cuboid 2) has a surface area of16.512m2 and a volume of 5.76m3.. The (cubic) surface area is 72 square decimeter, and the volume is 2 16 cubic decimeter.

2. 1.8×3=5.4 (cubic decimeter)? A: Yes. . . . . .

3.( 1) 24cm = 0.24m？ 0.24× 15×3= 10.8 (m3)？ 10.8×520=56 16 (block)? A: Yes. . . . . .

3.(2) 15×3×2=90 (square meters) a: . . . . .

This problem is very simple, just draw according to the picture hints given.

In this way, we can know that the first rectangle is 3 cm long, 4 cm wide and 3 cm high; The second rectangle is 4 cm long, 3 cm wide and 3 cm high. So the volume formulas of these two cuboids are both 4×3×3, and the results are both 36 cubic centimeters.