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18 July, 02:54

Around the car park, cylindrical concrete bollards are going to go placed.

80 cm diameter with the height of 1.3m. How much concrete will each one need by working out its volume in cm3

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Answers (2)
  1. 18 July, 03:03
    0
    0.653 m^3

    Step-by-step explanation:

    Radius = 1/2 * 0.8 = 0.4 m

    Volume = pi r^2 h

    = pi * 0.4^2 * 1.3

    = 0.653 m^3 to nearest thousandth
  2. 18 July, 04:20
    0
    653.120 cm³

    Step-by-step explanation:

    diameter/2 = 40 cm = radius

    Height = 130 cm

    Volume?

    Volume = π r² h

    = 3,14. 1600. 130

    = 653.120 cm³

    CMIIW
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