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⑪A wooden beam has a rectangular cross face, 24 cm by 15 cm, and is 8 m long . a Calculate the volume of the beam. Express your answer in i cm³ and ii m³. If the wood has a mass of 700 kg per m³, find the mass of the beam. ​

Répondre :

24 cm x 15 cm x 800 cm = 288 000 cm³

0,24 m x 0,15 m x 8 m = 0,288 m³

1 m³ = 700 kg

0,288 m³ = 0,288 x 700 = 201,6 kg

The mass of the beam is 201,6 kg

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