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Mathematics, 18.11.2020 22:30 abebaretosuacegod445

Four cylindrical concrete pillars support the roof of a building. each pillar is 4m long and 50cm in diameter, (a) calculate the total volume of the four pillars in meter cube,(b) if 1m cube of concrete has a mass of 2.1 tons calculate the total mass of the four pillars in tons

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