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The radius of one sphere is twice as great as the radius of another sphere. Find the ratio of their surface areas.
 one year ago
 one year ago
The radius of one sphere is twice as great as the radius of another sphere. Find the ratio of their surface areas.
 one year ago
 one year ago

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ParthKohliBest ResponseYou've already chosen the best response.1
Why don't you take a radius of 1 and a radius of 2 and then compare their surface areas? :)
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
\( \color{Black}{\Rightarrow Area(Sphere ) = 4\pi r^2 }\)
 one year ago

rtraylor3Best ResponseYou've already chosen the best response.0
I tried that. I got 1:4.
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
\( \color{Black}{\Rightarrow \textbf{Radius of 1}: 4\pi r ^2 \Longrightarrow 4\pi }\) \( \color{Black}{\Rightarrow \textbf{Radius of 2}:4\pi r^2 \Longrightarrow 16\pi }\) 1:4 is correct~!
 one year ago
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