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1 February, 04:46

The volume of a metal cylindrical rod is 126 cubic meters. The radius is 6 m. What is the height of the rod in millimeters? Use 3.14 as an approximation for π. Round your answer to the nearest millimeter.

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Answers (2)
  1. 1 February, 05:14
    0
    7000 mm

    Step-by-step explanation:

    Volume of the cylindrical rod = 126 m^3

    Radius of the cylindrical rod = 6m

    π = 3.14 (approximately)

    Required: h (in mm)

    Volume of a cylinder = πr^2h

    126 m^3 = (6) ^2 * h

    or

    h = 126 / (6) ^2 = 126 / 36 = 6.6868m * 1000 = 6686.8mm

    Therefore, the height of the cylinder is 7000 mm to its closest approximation.
  2. 1 February, 08:14
    0
    1.11 mm

    Step-by-step explanation:

    The height of a cylinder can be found using the formula: h=V / (πr^2)

    This formula was found by taking the formula for the volume of a cylinder and solving for h, or height. Knowing that V is 126 and the radius is 6, we can plug in our known variables in order to solve for h.
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