A cuboid is three meters long, four meters wide and three meters high. How many meters is its edge length and volume

A cuboid is three meters long, four meters wide and three meters high. How many meters is its edge length and volume

Ridge length sum: (3 + 4 + 3) × 4 = 40 (m)
Volume: 3 × 4 × 3 = 36 (M3)

If a house is seven meters long, four meters wide and three meters high, how to calculate the square? How to calculate the area? How to solve the problem?

Floor area is length × width, 7 × 4 = 28 square meters, floor tile area, wall area painted is length × height × 2 + width × height × 2, 7 × 3 × 2 + 4 × 3 × 2 = 66 square meters, roof area and floor area are the same, length × width

The area of a room to be painted is 60 square meters,
Every square meter needs 2 / 3 of the first coat. (1) how many liters of paint do you need to paint this room?

One liter can brush 7-8 square meters once, and 60 square meters can brush 15-17 liters