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A cuboid children's swimming pool is 40 meters long, 14 meters wide and 1.2 meters deep. How many pieces of square tiles with an area of 0.16 square meters need to be pasted on the four walls and the bottom of the pool?
40 × 14 + 40 × 1.2 × 2 + 14 × 1.2 × 2 = 560 + 96 + 33.6 = 689.6 (square meter) 689.6 △ 0.16 = 4310 (block) a: 4310 blocks are needed
A cuboid swimming pool is 20 meters long, 15 meters wide and 2 meters deep. Now we need to put cement on each side of the swimming pool, and then paste ceramic tiles with a length of 4 decimeters. How many such tiles are needed? If 5 kg of cement is used per square meter, how much cement will be used?
4 decimeter = 0.4 meter, 20 × 15 + (20 × 2 + 15 × 2) × 2, = 300 + 140, = 440 (square meter), 440 ^ (0.4 × 0.4), = 440 × 0.16, = 2750 (piece); 440 × 5 = 2200 (kg); answer: if you need 2750 tiles like this, you need 2200 kg of cement
A cuboid swimming pool is 20 meters long, 15 meters wide and 2 meters deep. Now we need to put cement on each side of the swimming pool, and then paste ceramic tiles with a length of 4 decimeters. How many such tiles are needed? If 5 kg of cement is used per square meter, how much cement will be used?
4 decimeter = 0.4 meter, 20 × 15 + (20 × 2 + 15 × 2) × 2, = 300 + 140, = 440 (square meter), 440 ^ (0.4 × 0.4), = 440 × 0.16, = 2750 (piece); 440 × 5 = 2200 (kg); answer: if you need 2750 tiles like this, you need 2200 kg of cement
A cuboid swimming pool is 20 meters long and 16 meters wide. Put cement on each side of it, and then stick 4-decimeter-long ceramic tiles. How many bricks do you need?
If 5 kg cement per square meter, how much cement
(20x16 + 20x2x2 + 16x2x2) / (0.4x0.4) = 2900 pieces
(20x16 + 20x2x2 + 16x2x2) X5 = 2320kg
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