The volume of a cone is 80π cubic inches. The height of the cone is 15 inches. What is the radius of the cone, rounded to the nearest inch? Use π=3.14 .

16 inches
8 inches
6 inches
4 inches

Respuesta :

  • Answer:

4 inches

  • Step-by-step explanation:

Hi there !

Volume (cone) formula

[tex]V=\frac{1}{3}Ab*h\\ \\Ab=\pi*r^{2}[/tex]

[tex]V=\frac{\pi*r^{2}*h}{3}[/tex]

[tex]3V=\pi *r^{2}*h\\\\r^{2}=\frac{3V}{\pi*h}[/tex]

replace

r² = 3×80π/15π

r² = 240/15

r² = 16

r = √16

r = 4 inches

Good luck !

Answer:

the answer is 4 inches I did the exam :)

Step-by-step explanation:

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