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  • 20-03-2022
  • Mathematics
contestada

A cylinder has a height of 7cm.
The circumference of the cylinder is 10pi
Calculate the volume of the cylinder in terms of pi
cm3

Respuesta :

semsee45
semsee45 semsee45
  • 20-03-2022

Answer:

[tex]175\pi \textsf{ cm}^3[/tex]

Step-by-step explanation:

Circumference of a circle:

[tex]C=2\pi r[/tex]  (where [tex]r[/tex] is the radius)

Given circumference = [tex]10\pi[/tex]

[tex]\implies 10\pi=2\pi r[/tex]

[tex]\implies r=5[/tex]

Volume of a cylinder:

[tex]V=\pi r^2h[/tex]   (where [tex]r[/tex] is the radius and [tex]h[/tex] is the height)

[tex]\implies V=\pi \cdot5^2\cdot 7[/tex]

[tex]\implies V=175\pi \textsf{ cm}^3[/tex]

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