There is a rectangular living room, 6 4 meters long and 4 meters wide, which requires 40 square floo

The living room area is 3X4=12 (square meters).

12 (block). >>>More

5X4 = 20 square meters = 2000 square decimeters.

A: The living room area is 20 square meters, which is 2000 square decimeters. >>>More

80 cm = m 12 pieces 90 100 So 100 pieces are enough.

A rectangular living room is long and metery, and the floor should be paved with square bricks. >>>More

The length and width of the Xinjiang rectangular living room are divided into meters, so that in decimeters, they are all integers, which are 40 decimeters long and 35 decimeters wide. The so-called flip is a square brick tile, then find the greatest common divisor of 40 and 35. This is 5, so you should choose a brick of 5 5, that is, a brick with a side length of 5 decimeters. >>>More