Nam makes a trapezium card with an area of 28 square cm. Each square cm costs 1000 VND. Total cost?, 56000, 14000 VND, 28000 VND, A trapezium wall has an area of 5 square meters. One can of paint covers 1 square meter. How many cans are needed?, 2 cans, 5 cans, 3 cans, A playground has bases of 20 m and 30 m. The height is 10 m. How much grass carpet is needed?, 250 square meters, 150 square meters, 500 square meters, A stage has bases of 4 m and 6 m. The total area is 20 square meters. What is the height?, 2 meters, 4 meters, 5 meters, A solar panel has bases of 1 m and 2 m. The height is 2 m. What is its area?, 6 square meters, 4 square meters, 3 square meters, A pool section has bases of 8 m and 12 m. The height is 6 m. What is its floor area?, 120 square meters, 60 square meters, 96 square meters
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UNIT 21.4
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