https://imgur.com/a/mrKLMPP
can someone help please haha i don't understand it at all, if you could show your work also that would be helpful :)
The triangle inside of the cylinder has radius 10, and is a 30-60-90 triangle, which means the small leg has length 5 and the height of the cylinder is \(5\sqrt3\).
Thus, the area of the cylinder is radius^2 pi *height = \(5^2pi*5\sqrt3\) = \(125\sqrt3pi\), which is roughly 680.174761588