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mckenzieandjesus
 one year ago
What is the surface area of the cone?
175π cm2
224π cm2
147π cm2
273π cm2
mckenzieandjesus
 one year ago
What is the surface area of the cone? 175π cm2 224π cm2 147π cm2 273π cm2

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mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0im using this site http://www.webformulas.com/Math_Formulas/Geometry_Surface_of_Cone.aspx but got the wrong answer and kind of confused how to put it all in the formula..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(\large \textit{volume of a cone}=\cfrac{\pi r^2 h}{3}\qquad \begin{cases} r=radius\\ h=height \end{cases} \)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hmm shoot .. surface area... ok

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(\bf \textit{total surface area of a cone}=\pi r\sqrt{r^2+h^2}+\pi r^2\qquad \begin{cases} r=radius\\ h=height \end{cases} \)

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0or 703.36 those are the answers im getting..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hmm so.. which one did you get?

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0so \[3.14*7\sqrt{7^{2}}+24^{2} + 3.14*7^2 =\] 16909.214

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0yeah and i got that answer u got by doing it another way.. but none of those are on my answer choices..

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0@jim_thompson5910

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh hmmm your choices are in \(\huge \pi\) terms thus... you need to keep the \(\huge \pi\) without multiplying it

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0so how do i do that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0well.. just don't multiply the \(\pi\) and keep it as is, as a variable per se

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0\[7*\sqrt{7^2+24^2} + 3.14*7^2\]

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0\[7*\sqrt{7^2+24^2} * 7^2 = 8575\]

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0okay.. still lost

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hmmm have a typo there one sec \(\bf \textit{total surface area of a cone}=\pi r\sqrt{r^2+h^2}+\pi r^2\qquad \begin{cases} r=radius\\ h=height \end{cases} \\ \quad \\ \pi r\sqrt{r^2+h^2}+\pi r^2\implies \pi r(\sqrt{r^2+h^2}+r)\impliedby \textit{common factor} \\ \quad \\ \begin{cases} r=7\\ h=24 \end{cases}\implies \pi \cdot 7(\sqrt{7^2+24^2}+7)\implies \square ?\pi \)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so in \(\pi\) terms is \(\large 224\pi\)

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0Can u finish helping me on my other question please?
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