3 years ago

The formula for the volume of a cone is V =1/3 pi*r^2h. If the radius (r) is doubled and

1 answer:

5 0

V = 1/3* h * r^3 pi
V ' = 1/3* h/3* (2r)^3 pi = h/9 * 8r^3 * pi

V ' / V = (h/9 * 8r^3 * pi) ÷ ( 1/3* h * r^3 pi ) = (8 * 3)/ 9 = 8 /3

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