Question 630064
Two cylindrical water tanks have the same dimensions. One is filled to a height of 4 ft while the other is filled to a height of 8 ft. What is the ratio of the amount of water in the two tanks?
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{{{Vol = pi*r^2*h}}}
h is 1st power --> linear function
Put another way, Vol = k*h, since pi*r^2 is the same for the 2 tanks.
4 to 8 --> 1 to 2 volume, the same ratio