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10 March, 21:01

A 1.8 m tall man has a waistline of 100 cm. Which measure best approximates the volume of the man when using a cylinder to approximate the man's shape? Question 1 options:

0.06 m³

0.14 m³

0.4 m³

0.72 m³

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Answers (1)
  1. 10 March, 21:12
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    Waistline 100cm is the circle circumference->calculate radius

    100cm=1m=2*r*π

    0.5=r*π

    0.5/π=r

    area of a circle: A=r²π = (0.5/π) ²π=0.25/π m²

    circlearea*height=cylinder volume

    1.8*0.25/π=0.45/π m³~0.143239 m³

    so the second option is the correct one
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