A parallelogram steel plate, the bottom is 12.5 meters, the height is 6.2 meters, (as shown in the picture) how many kilograms does this steel plate weigh? (16.5 kg / m2)
12.5 × 6.2 × 16.5 = 1278.75 (kg); answer: this steel plate weighs 1278.75 kg
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