AubumagordGrafaver AubumagordGrafaver
  • 09-04-2017
  • Mathematics
contestada

Suppose a coffee cup has a diameter of 8 cm and a height of 9 cm. what is the volume of the cup? (to nearest whole number)
a.81 cm3b)226 cm3c)452 cm3eliminated)1018 cm3

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 09-04-2017
V=hpir^2
d/2=r
d=8,
8/2=d/2=4=r

v=hpir^2
v=9pi4^2
v=9pi16
v=144pi
aprox
v=452.3

answer is C

Answer Link
calculista
calculista calculista
  • 05-02-2019

Answer:

Option C [tex]452\ cm^{3}[/tex]

Step-by-step explanation:

we know that

the volume of a cylinder (coffe cup) is equal to

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

we have

[tex]r=8/2=4\ cm[/tex] -----> the radius is half the diameter

[tex]h=9\ cm[/tex]

substitute

[tex]V=\pi (4^{2})(9)=452.4\ cm^{3}[/tex]

Round to the nearest whole number

[tex]452.4\ cm^{3}=452\ cm^{3}[/tex]

Answer Link

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