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Mathematics 13 Online
OpenStudy (anonymous):

What is the volume of the right cone shown below?

OpenStudy (jdoe0001):

0, since the cone is blank

OpenStudy (anonymous):

OpenStudy (anonymous):

@jdoe0001 help now?

OpenStudy (jdoe0001):

\(\bf \textit{volume of a cone} =\cfrac{\pi r^2 h}{3} \\ \quad \\ h = height\qquad \qquad r = radius = \frac{diameter}{2}\)

OpenStudy (anonymous):

can youplug them in for me? h=27 R=6

OpenStudy (anonymous):

i dont know what i do from here

OpenStudy (jdoe0001):

well.. what's the radius?

OpenStudy (anonymous):

3.14*6?

OpenStudy (jdoe0001):

do you know what a radius is?

OpenStudy (anonymous):

on my cone on the picture the radius would be 6 half of 12

OpenStudy (jdoe0001):

\(\bf \textit{volume of a cone} =\cfrac{\pi \cdot {\color{red}{ 6}}^2 \cdot 27}{3} \\ \quad \\ h = height\qquad \qquad r = 6 = \frac{12}{2}\)

OpenStudy (anonymous):

508.68?

OpenStudy (jdoe0001):

\(\bf \textit{volume of a cone} =\cfrac{\pi \cdot {\color{red}{ 6}}^2 \cdot 27}{3}\implies \cfrac{36\cdot 27}{3}\ \pi\)

OpenStudy (anonymous):

972π units3?

OpenStudy (jdoe0001):

well, what about the denominator though? you still need to divide the product by that

OpenStudy (jdoe0001):

\(\bf \textit{volume of a cone} =\cfrac{\pi \cdot {\color{red}{ 6}}^2 \cdot 27}{3}\implies \cfrac{36\cdot 27}{3}\ \pi\implies \cfrac{972}{3}\ \pi\)

OpenStudy (anonymous):

324πunits3?

OpenStudy (jdoe0001):

324πunits3? \(\checkmark\)

OpenStudy (anonymous):

ty so much

OpenStudy (jdoe0001):

yw

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