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Question
Hello,
I am currently working with circles and their surface area and volumes.I know the diameter of one circle, and the radius of the other,but from that information I am not sure how to find the scale factor.What steps do I need to take to get there?Thank you!
-Karlee

volume v = (4/3)πr³
surface area a = 4πr²

"I know the diameter of one circle, and the radius of the other"
r₁ = d₁/2

I'm not sure what you are looking for—the ratios of the volume and areas of the spheres?
v₁/v₂ = r₁³/r₂³ = (r₁/r₂)³

a₁/a₂ = r₁²/r₂² = (r₁/r₂)²

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