Hi, I just wanted to know how do you find the volume and surface area of a sphere when they only give you the Circumference of it?
For example, C=10ft
You need to manipulate the circumference so that it becomes the radius, which you can then use to find the volume and surface area.
C = 2πr, which means that r = C÷2π.
We know that V = 4/3πr³ and SA = 4πr², so combining these with the above gives that V = C³/6π² and SA = C²/π.
Sorry I didn't go into much detail. Feel free to ask again if you're still stuck.
Why did the vector cross the road?
It wanted to be normal.