dempseyspiegel dempseyspiegel
  • 19-03-2020
  • Mathematics
contestada

The cylinder below has a volume of 2,512cm and a height of 8cm. What is the diameter of the cylinder?

Respuesta :

Ursus Ursus
  • 21-03-2020

Answer:

[tex]Diameter=2*r= 2*10=20 cm[/tex]

Step-by-step explanation:

Volume of the cylinder= [tex]2512cm^3[/tex]

Height(h) of the cylinder=8 cm

Diameter= 2*radius

Radius(r)=?

Volume of a cylinder= [tex]\pi *r^2*h[/tex]

As,  [tex]\pi =\frac{22}{7} =3.14[/tex]

Putting the values in the formula:

[tex]2512=3.14*r^2*8\\\\2512=25.12*r^2[/tex]

Dividing by '25.12' both side:

[tex]r^2=2512/25.12\\\\r^2=100\\\\r=10[/tex]

[tex]Diameter=2*r= 2*10=20 cm[/tex]

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