Respuesta :
Answer:
[tex]V_{cylinder}=251.2\ in^3,[/tex]
[tex]V_{cone}=251.2\ in^3,[/tex]
[tex]V_{cylinder}=V_{cone}.[/tex]
Step-by-step explanation:
The volume of the cylinder is
[tex]V_{cylinder}=\pi r^2 h,[/tex]
where r is the radius of a base circle and h is the cylinder's height.
If cylinder has diameter of 8 inches, then its radius is 4 inches. The height of the cylinder is 5 inches. Thus, the volume of the cylinder is
[tex]V_{cylinder}=3.14\cdot 4^2\cdot 5=251.2\ in^3.[/tex]
The volume of the cone is
[tex]V_{cone}=\dfrac{1}{3}\pi r^2 h,[/tex]
where r is the radius of a base circle and h is the cone's height.
If cone has diameter of 8 inches, then its radius is 4 inches. The height of the cone is 15 inches. Thus, the volume of the cone is
[tex]V_{cylinder}=\dfrac{1}{3}\cdot 3.14\cdot 4^2\cdot 15=251.2\ in^3.[/tex]
As you can see the cylinder and the cone have the same volume.
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Step-by-step explanation:
pi r2h = cylinder
(3.14)(4)2(5)
(3.14)(16)(5)
(50.24)(5)
251.2=V of cy
CONE:
1/3 pi r2h
1/3(3.14)(4)2(15)
(1.47)(16)(15)
(23.52)(15)
352.8=V of cone